unix/modtime: strftime(): Support 2nd argument, but as time_t value.
unix/modtime: strftime(): Support 2nd argument, but as time_t value.

Instead of struct tm like structure, as required by CPython.

pozetroninc/micropython,matthewelse/micropython,pozetroninc/micropython,mpalomer/micropython,hiway/micropython,tobbad/micropython,hosaka/micropython,turbinenreiter/micropython,bvernoux/micropython,supergis/micropython,toolmacher/micropython,turbinenreiter/micropython,TDAbboud/micropython,cwyark/micropython,micropython/micropython-esp32,Timmenem/micropython,MrSurly/micropython,supergis/micropython,cwyark/micropython,ryannathans/micropython,HenrikSolver/micropython,adafruit/circuitpython,hiway/micropython,matthewelse/micropython,supergis/micropython,SHA2017-badge/micropython-esp32,adamkh/micropython,matthewelse/micropython,dxxb/micropython,Peetz0r/micropython-esp32,PappaPeppar/micropython,pramasoul/micropython,EcmaXp/micropython,emfcamp/micropython,redbear/micropython,blazewicz/micropython,drrk/micropython,Timmenem/micropython,mpalomer/micropython,pramasoul/micropython,torwag/micropython,toolmacher/micropython,galenhz/micropython,ganshun666/micropython,toolmacher/micropython,swegener/micropython,tobbad/micropython,pramasoul/micropython,henriknelson/micropython,ganshun666/micropython,praemdonck/micropython,henriknelson/micropython,pozetroninc/micropython,selste/micropython,MrSurly/micropython-esp32,alex-robbins/micropython,oopy/micropython,lowRISC/micropython,chrisdearman/micropython,chrisdearman/micropython,selste/micropython,dmazzella/micropython,alex-robbins/micropython,redbear/micropython,adafruit/micropython,swegener/micropython,ryannathans/micropython,toolmacher/micropython,TDAbboud/micropython,blazewicz/micropython,ryannathans/micropython,matthewelse/micropython,torwag/micropython,MrSurly/micropython,PappaPeppar/micropython,deshipu/micropython,emfcamp/micropython,bvernoux/micropython,hosaka/micropython,ganshun666/micropython,Peetz0r/micropython-esp32,cwyark/micropython,Timmenem/micropython,adamkh/micropython,HenrikSolver/micropython,misterdanb/micropython,pramasoul/micropython,praemdonck/micropython,chrisdearman/micropython,tuc-osg/micropython,mpalomer/micropython,hiway/micropython,henriknelson/micropython,drrk/micropython,redbear/micropython,misterdanb/micropython,micropython/micropython-esp32,TDAbboud/micropython,puuu/micropython,dxxb/micropython,drrk/micropython,pfalcon/micropython,alex-march/micropython,trezor/micropython,adafruit/micropython,trezor/micropython,jmarcelino/pycom-micropython,redbear/micropython,misterdanb/micropython,SHA2017-badge/micropython-esp32,AriZuu/micropython,alex-march/micropython,micropython/micropython-esp32,micropython/micropython-esp32,infinnovation/micropython,torwag/micropython,galenhz/micropython,mianos/micropython,tuc-osg/micropython,bvernoux/micropython,turbinenreiter/micropython,kerneltask/micropython,misterdanb/micropython,tuc-osg/micropython,trezor/micropython,Peetz0r/micropython-esp32,mhoffma/micropython,deshipu/micropython,tuc-osg/micropython,mhoffma/micropython,deshipu/micropython,PappaPeppar/micropython,swegener/micropython,tobbad/micropython,danicampora/micropython,danicampora/micropython,alex-robbins/micropython,Peetz0r/micropython-esp32,MrSurly/micropython-esp32,supergis/micropython,ryannathans/micropython,pfalcon/micropython,dxxb/micropython,alex-robbins/micropython,praemdonck/micropython,deshipu/micropython,EcmaXp/micropython,kerneltask/micropython,torwag/micropython,danicampora/micropython,AriZuu/micropython,blazewicz/micropython,ganshun666/micropython,selste/micropython,mianos/micropython,alex-robbins/micropython,adafruit/circuitpython,cwyark/micropython,chrisdearman/micropython,emfcamp/micropython,dmazzella/micropython,trezor/micropython,matthewelse/micropython,selste/micropython,AriZuu/micropython,blazewicz/micropython,mhoffma/micropython,TDAbboud/micropython,adamkh/micropython,alex-march/micropython,pfalcon/micropython,praemdonck/micropython,turbinenreiter/micropython,redbear/micropython,puuu/micropython,adafruit/circuitpython,tralamazza/micropython,mianos/micropython,pozetroninc/micropython,dmazzella/micropython,hosaka/micropython,chrisdearman/micropython,MrSurly/micropython,oopy/micropython,danicampora/micropython,hiway/micropython,ryannathans/micropython,AriZuu/micropython,mianos/micropython,lowRISC/micropython,danicampora/micropython,tobbad/micropython,tralamazza/micropython,adafruit/micropython,PappaPeppar/micropython,kerneltask/micropython,HenrikSolver/micropython,puuu/micropython,MrSurly/micropython,misterdanb/micropython,adafruit/micropython,jmarcelino/pycom-micropython,mpalomer/micropython,swegener/micropython,mpalomer/micropython,infinnovation/micropython,tralamazza/micropython,jmarcelino/pycom-micropython,blazewicz/micropython,pramasoul/micropython,pfalcon/micropython,lowRISC/micropython,praemdonck/micropython,hiway/micropython,matthewelse/micropython,henriknelson/micropython,EcmaXp/micropython,turbinenreiter/micropython,cwyark/micropython,galenhz/micropython,adamkh/micropython,galenhz/micropython,MrSurly/micropython-esp32,ganshun666/micropython,deshipu/micropython,AriZuu/micropython,dinau/micropython,supergis/micropython,mhoffma/micropython,oopy/micropython,MrSurly/micropython-esp32,TDAbboud/micropython,tralamazza/micropython,drrk/micropython,HenrikSolver/micropython,dinau/micropython,alex-march/micropython,adafruit/circuitpython,selste/micropython,dxxb/micropython,dmazzella/micropython,infinnovation/micropython,lowRISC/micropython,lowRISC/micropython,dinau/micropython,tobbad/micropython,henriknelson/micropython,Timmenem/micropython,HenrikSolver/micropython,oopy/micropython,puuu/micropython,infinnovation/micropython,kerneltask/micropython,bvernoux/micropython,pfalcon/micropython,toolmacher/micropython,drrk/micropython,dinau/micropython,adamkh/micropython,Peetz0r/micropython-esp32,swegener/micropython,adafruit/micropython,hosaka/micropython,puuu/micropython,jmarcelino/pycom-micropython,jmarcelino/pycom-micropython,MrSurly/micropython,galenhz/micropython,emfcamp/micropython,MrSurly/micropython-esp32,dinau/micropython,mhoffma/micropython,Timmenem/micropython,torwag/micropython,mianos/micropython,emfcamp/micropython,SHA2017-badge/micropython-esp32,trezor/micropython,hosaka/micropython,micropython/micropython-esp32,EcmaXp/micropython,pozetroninc/micropython,adafruit/circuitpython,dxxb/micropython,oopy/micropython,EcmaXp/micropython,bvernoux/micropython,SHA2017-badge/micropython-esp32,SHA2017-badge/micropython-esp32,alex-march/micropython,PappaPeppar/micropython,tuc-osg/micropython,infinnovation/micropython,adafruit/circuitpython,kerneltask/micropython