showbc: Print code block header at the beginning, not in the middle of dump.
showbc: Print code block header at the beginning, not in the middle of dump.

Also, dump code block in bytes.

xuxiaoxin/micropython,KISSMonX/micropython,lbattraw/micropython,tuc-osg/micropython,ceramos/micropython,TDAbboud/micropython,trezor/micropython,emfcamp/micropython,danicampora/micropython,MrSurly/micropython-esp32,ericsnowcurrently/micropython,ChuckM/micropython,paul-xxx/micropython,blazewicz/micropython,utopiaprince/micropython,drrk/micropython,adafruit/micropython,jlillest/micropython,vriera/micropython,redbear/micropython,lbattraw/micropython,PappaPeppar/micropython,hosaka/micropython,toolmacher/micropython,heisewangluo/micropython,alex-robbins/micropython,SungEun-Steve-Kim/test-mp,trezor/micropython,supergis/micropython,micropython/micropython-esp32,selste/micropython,slzatz/micropython,adafruit/circuitpython,Timmenem/micropython,misterdanb/micropython,pozetroninc/micropython,Vogtinator/micropython,tralamazza/micropython,TDAbboud/micropython,cnoviello/micropython,xhat/micropython,selste/micropython,alex-march/micropython,TDAbboud/micropython,micropython/micropython-esp32,noahchense/micropython,kostyll/micropython,torwag/micropython,oopy/micropython,matthewelse/micropython,HenrikSolver/micropython,xuxiaoxin/micropython,mgyenik/micropython,neilh10/micropython,danicampora/micropython,pozetroninc/micropython,Peetz0r/micropython-esp32,hosaka/micropython,mianos/micropython,swegener/micropython,puuu/micropython,skybird6672/micropython,drrk/micropython,jmarcelino/pycom-micropython,stonegithubs/micropython,ahotam/micropython,heisewangluo/micropython,tuc-osg/micropython,KISSMonX/micropython,adafruit/micropython,Vogtinator/micropython,cnoviello/micropython,HenrikSolver/micropython,ChuckM/micropython,omtinez/micropython,pramasoul/micropython,adamkh/micropython,tralamazza/micropython,xyb/micropython,ahotam/micropython,mpalomer/micropython,Vogtinator/micropython,ahotam/micropython,danicampora/micropython,hosaka/micropython,orionrobots/micropython,blmorris/micropython,omtinez/micropython,xyb/micropython,torwag/micropython,slzatz/micropython,galenhz/micropython,PappaPeppar/micropython,blazewicz/micropython,firstval/micropython,drrk/micropython,aethaniel/micropython,ChuckM/micropython,adamkh/micropython,xuxiaoxin/micropython,matthewelse/micropython,blazewicz/micropython,praemdonck/micropython,ernesto-g/micropython,kerneltask/micropython,vitiral/micropython,feilongfl/micropython,lowRISC/micropython,redbear/micropython,dxxb/micropython,tobbad/micropython,aethaniel/micropython,ruffy91/micropython,SHA2017-badge/micropython-esp32,ericsnowcurrently/micropython,jmarcelino/pycom-micropython,dhylands/micropython,neilh10/micropython,vitiral/micropython,MrSurly/micropython-esp32,tuc-osg/micropython,torwag/micropython,neilh10/micropython,mpalomer/micropython,alex-robbins/micropython,pfalcon/micropython,selste/micropython,vriera/micropython,hosaka/micropython,chrisdearman/micropython,PappaPeppar/micropython,warner83/micropython,bvernoux/micropython,HenrikSolver/micropython,emfcamp/micropython,tdautc19841202/micropython,stonegithubs/micropython,SungEun-Steve-Kim/test-mp,praemdonck/micropython,ganshun666/micropython,turbinenreiter/micropython,SHA2017-badge/micropython-esp32,cloudformdesign/micropython,alex-march/micropython,vriera/micropython,oopy/micropython,infinnovation/micropython,pramasoul/micropython,infinnovation/micropython,adafruit/micropython,jimkmc/micropython,cwyark/micropython,EcmaXp/micropython,MrSurly/micropython-esp32,dxxb/micropython,mhoffma/micropython,jlillest/micropython,lowRISC/micropython,tdautc19841202/micropython,martinribelotta/micropython,blmorris/micropython,slzatz/micropython,ernesto-g/micropython,noahwilliamsson/micropython,skybird6672/micropython,pozetroninc/micropython,mgyenik/micropython,adafruit/circuitpython,ahotam/micropython,ryannathans/micropython,vitiral/micropython,warner83/micropython,orionrobots/micropython,trezor/micropython,paul-xxx/micropython,chrisdearman/micropython,adafruit/micropython,ahotam/micropython,kerneltask/micropython,matthewelse/micropython,dmazzella/micropython,firstval/micropython,kerneltask/micropython,deshipu/micropython,orionrobots/micropython,galenhz/micropython,supergis/micropython,utopiaprince/micropython,xuxiaoxin/micropython,ceramos/micropython,dmazzella/micropython,Peetz0r/micropython-esp32,cloudformdesign/micropython,methoxid/micropystat,deshipu/micropython,tdautc19841202/micropython,cwyark/micropython,heisewangluo/micropython,vriera/micropython,blmorris/micropython,skybird6672/micropython,SHA2017-badge/micropython-esp32,matthewelse/micropython,toolmacher/micropython,mgyenik/micropython,lbattraw/micropython,rubencabrera/micropython,tuc-osg/micropython,orionrobots/micropython,xyb/micropython,dhylands/micropython,swegener/micropython,SHA2017-badge/micropython-esp32,omtinez/micropython,EcmaXp/micropython,alex-robbins/micropython,stonegithubs/micropython,jmarcelino/pycom-micropython,methoxid/micropystat,alex-march/micropython,cnoviello/micropython,cwyark/micropython,chrisdearman/micropython,paul-xxx/micropython,bvernoux/micropython,vitiral/micropython,paul-xxx/micropython,ganshun666/micropython,hiway/micropython,lowRISC/micropython,lbattraw/micropython,hiway/micropython,mhoffma/micropython,EcmaXp/micropython,ericsnowcurrently/micropython,jlillest/micropython,jlillest/micropython,swegener/micropython,Peetz0r/micropython-esp32,Vogtinator/micropython,neilh10/micropython,oopy/micropython,galenhz/micropython,dinau/micropython,dinau/micropython,SHA2017-badge/micropython-esp32,cnoviello/micropython,blmorris/micropython,martinribelotta/micropython,ruffy91/micropython,paul-xxx/micropython,redbear/micropython,warner83/micropython,pramasoul/micropython,xhat/micropython,MrSurly/micropython,tralamazza/micropython,MrSurly/micropython-esp32,SungEun-Steve-Kim/test-mp,henriknelson/micropython,MrSurly/micropython,noahwilliamsson/micropython,pozetroninc/micropython,henriknelson/micropython,adamkh/micropython,methoxid/micropystat,cloudformdesign/micropython,jimkmc/micropython,mgyenik/micropython,mhoffma/micropython,ceramos/micropython,pfalcon/micropython,ruffy91/micropython,noahwilliamsson/micropython,infinnovation/micropython,trezor/micropython,praemdonck/micropython,turbinenreiter/micropython,dmazzella/micropython,suda/micropython,Timmenem/micropython,swegener/micropython,ernesto-g/micropython,dxxb/micropython,warner83/micropython,utopiaprince/micropython,AriZuu/micropython,KISSMonX/micropython,MrSurly/micropython,ernesto-g/micropython,EcmaXp/micropython,alex-robbins/micropython,Vogtinator/micropython,mianos/micropython,ChuckM/micropython,chrisdearman/micropython,tobbad/micropython,hiway/micropython,SungEun-Steve-Kim/test-mp,toolmacher/micropython,mpalomer/micropython,stonegithubs/micropython,MrSurly/micropython,feilongfl/micropython,ceramos/micropython,mianos/micropython,cloudformdesign/micropython,adamkh/micropython,praemdonck/micropython,tdautc19841202/micropython,galenhz/micropython,dhylands/micropython,suda/micropython,ganshun666/micropython,TDAbboud/micropython,heisewangluo/micropython,MrSurly/micropython-esp32,xhat/micropython,micropython/micropython-esp32,ruffy91/micropython,mgyenik/micropython,aethaniel/micropython,mianos/micropython,suda/micropython,firstval/micropython,mhoffma/micropython,kostyll/micropython,hosaka/micropython,turbinenreiter/micropython,lowRISC/micropython,Peetz0r/micropython-esp32,ChuckM/micropython,pfalcon/micropython,utopiaprince/micropython,orionrobots/micropython,dinau/micropython,AriZuu/micropython,ryannathans/micropython,firstval/micropython,puuu/micropython,danicampora/micropython,puuu/micropython,matthewelse/micropython,jmarcelino/pycom-micropython,blazewicz/micropython,pozetroninc/micropython,EcmaXp/micropython,danicampora/micropython,selste/micropython,puuu/micropython,Timmenem/micropython,adafruit/micropython,methoxid/micropystat,PappaPeppar/micropython,alex-march/micropython,pramasoul/micropython,jlillest/micropython,kostyll/micropython,TDAbboud/micropython,slzatz/micropython,HenrikSolver/micropython,ganshun666/micropython,AriZuu/micropython,dxxb/micropython,SungEun-Steve-Kim/test-mp,vitiral/micropython,omtinez/micropython,neilh10/micropython,hiway/micropython,warner83/micropython,suda/micropython,tdautc19841202/micropython,selste/micropython,cwyark/micropython,oopy/micropython,martinribelotta/micropython,aethaniel/micropython,misterdanb/micropython,dxxb/micropython,noahwilliamsson/micropython,adafruit/circuitpython,micropython/micropython-esp32,pfalcon/micropython,supergis/micropython,kerneltask/micropython,mpalomer/micropython,firstval/micropython,bvernoux/micropython,bvernoux/micropython,toolmacher/micropython,kerneltask/micropython,noahwilliamsson/micropython,noahchense/micropython,drrk/micropython,redbear/micropython,henriknelson/micropython,ganshun666/micropython,tobbad/micropython,henriknelson/micropython,pramasoul/micropython,deshipu/micropython,torwag/micropython,stonegithubs/micropython,trezor/micropython,ernesto-g/micropython,skybird6672/micropython,rubencabrera/micropython,redbear/micropython,KISSMonX/micropython,omtinez/micropython,galenhz/micropython,toolmacher/micropython,ericsnowcurrently/micropython,xyb/micropython,infinnovation/micropython,aethaniel/micropython,slzatz/micropython,cnoviello/micropython,swegener/micropython,AriZuu/micropython,feilongfl/micropython,xyb/micropython,martinribelotta/micropython,chrisdearman/micropython,ryannathans/micropython,xhat/micropython,Timmenem/micropython,mianos/micropython,martinribelotta/micropython,blazewicz/micropython,dinau/micropython,deshipu/micropython,heisewangluo/micropython,ryannathans/micropython,methoxid/micropystat,vriera/micropython,pfalcon/micropython,drrk/micropython,xuxiaoxin/micropython,infinnovation/micropython,mpalomer/micropython,rubencabrera/micropython,turbinenreiter/micropython,adamkh/micropython,cloudformdesign/micropython,tralamazza/micropython,misterdanb/micropython,jimkmc/micropython,alex-robbins/micropython,matthewelse/micropython,ceramos/micropython,noahchense/micropython,cwyark/micropython,dhylands/micropython,lbattraw/micropython,rubencabrera/micropython,kostyll/micropython,emfcamp/micropython,dinau/micropython,Timmenem/micropython,turbinenreiter/micropython,ericsnowcurrently/micropython,AriZuu/micropython,xhat/micropython,feilongfl/micropython,misterdanb/micropython,adafruit/circuitpython,KISSMonX/micropython,PappaPeppar/micropython,ruffy91/micropython,jimkmc/micropython,ryannathans/micropython,noahchense/micropython,utopiaprince/micropython,deshipu/micropython,tobbad/micropython,henriknelson/micropython,hiway/micropython,torwag/micropython,Peetz0r/micropython-esp32,rubencabrera/micropython,noahchense/micropython,bvernoux/micropython,dmazzella/micropython,jmarcelino/pycom-micropython,misterdanb/micropython,adafruit/circuitpython,alex-march/micropython,suda/micropython,kostyll/micropython,jimkmc/micropython,dhylands/micropython,blmorris/micropython,micropython/micropython-esp32,adafruit/circuitpython,supergis/micropython,mhoffma/micropython,emfcamp/micropython,feilongfl/micropython,MrSurly/micropython,emfcamp/micropython,oopy/micropython,puuu/micropython,skybird6672/micropython,praemdonck/micropython,tuc-osg/micropython,HenrikSolver/micropython,tobbad/micropython,supergis/micropython,lowRISC/micropython