docs/conf.py: Active sphinx_selective_exclude extensions.
docs/conf.py: Active sphinx_selective_exclude extensions.

For modindex_exclude extension, per-port module excludes are also added.
With these changes, it's possible to generate docs for a particular port
devoid of any superfluous and unrelated content, including in indexes and
full-text search - with small caveat: when generating PDF docs after HTML,
or vice-versa cached internal doctree representation (build/*/doctrees/)
must be removed first.

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