py/objtype: mp_obj_class_lookup: Improve debug logging.
py/objtype: mp_obj_class_lookup: Improve debug logging.

Now traces more explicitly thru the lookup process.

pozetroninc/micropython,blazewicz/micropython,pfalcon/micropython,pramasoul/micropython,MrSurly/micropython-esp32,oopy/micropython,MrSurly/micropython,kerneltask/micropython,ryannathans/micropython,kerneltask/micropython,bvernoux/micropython,torwag/micropython,MrSurly/micropython,Timmenem/micropython,AriZuu/micropython,adafruit/circuitpython,pramasoul/micropython,blazewicz/micropython,adafruit/micropython,trezor/micropython,swegener/micropython,pramasoul/micropython,selste/micropython,AriZuu/micropython,torwag/micropython,blazewicz/micropython,torwag/micropython,adafruit/circuitpython,tobbad/micropython,henriknelson/micropython,pramasoul/micropython,pozetroninc/micropython,swegener/micropython,oopy/micropython,infinnovation/micropython,MrSurly/micropython-esp32,dmazzella/micropython,micropython/micropython-esp32,bvernoux/micropython,adafruit/micropython,MrSurly/micropython,selste/micropython,bvernoux/micropython,pfalcon/micropython,selste/micropython,MrSurly/micropython-esp32,pozetroninc/micropython,pfalcon/micropython,trezor/micropython,henriknelson/micropython,infinnovation/micropython,micropython/micropython-esp32,kerneltask/micropython,Timmenem/micropython,pfalcon/micropython,pramasoul/micropython,oopy/micropython,dmazzella/micropython,oopy/micropython,tobbad/micropython,bvernoux/micropython,torwag/micropython,Timmenem/micropython,lowRISC/micropython,ryannathans/micropython,lowRISC/micropython,pozetroninc/micropython,micropython/micropython-esp32,MrSurly/micropython,adafruit/circuitpython,tralamazza/micropython,MrSurly/micropython-esp32,lowRISC/micropython,lowRISC/micropython,MrSurly/micropython,adafruit/circuitpython,infinnovation/micropython,swegener/micropython,tralamazza/micropython,adafruit/micropython,ryannathans/micropython,tralamazza/micropython,ryannathans/micropython,henriknelson/micropython,micropython/micropython-esp32,micropython/micropython-esp32,tobbad/micropython,AriZuu/micropython,adafruit/micropython,oopy/micropython,adafruit/micropython,infinnovation/micropython,swegener/micropython,blazewicz/micropython,trezor/micropython,Timmenem/micropython,henriknelson/micropython,tobbad/micropython,blazewicz/micropython,pozetroninc/micropython,trezor/micropython,pfalcon/micropython,selste/micropython,trezor/micropython,AriZuu/micropython,AriZuu/micropython,ryannathans/micropython,Timmenem/micropython,adafruit/circuitpython,tobbad/micropython,adafruit/circuitpython,torwag/micropython,kerneltask/micropython,dmazzella/micropython,lowRISC/micropython,infinnovation/micropython,swegener/micropython,henriknelson/micropython,dmazzella/micropython,kerneltask/micropython,selste/micropython,bvernoux/micropython,MrSurly/micropython-esp32,tralamazza/micropython