zephyr/modzephyr: Add current_tid() and stacks_analyze() functions.
zephyr/modzephyr: Add current_tid() and stacks_analyze() functions.

current_tid() returns current thread ID. stacks_analyze() calls
k_call_stacks_analyze() which, with CONFIG_INIT_STACKS enabled,
will print stack usage for some well-known threads in the system.

lowRISC/micropython,pramasoul/micropython,adafruit/micropython,micropython/micropython-esp32,pozetroninc/micropython,trezor/micropython,swegener/micropython,micropython/micropython-esp32,tralamazza/micropython,infinnovation/micropython,pfalcon/micropython,ryannathans/micropython,kerneltask/micropython,pozetroninc/micropython,bvernoux/micropython,lowRISC/micropython,tralamazza/micropython,blazewicz/micropython,pramasoul/micropython,oopy/micropython,pozetroninc/micropython,tobbad/micropython,MrSurly/micropython-esp32,oopy/micropython,ryannathans/micropython,kerneltask/micropython,oopy/micropython,Timmenem/micropython,AriZuu/micropython,Timmenem/micropython,adafruit/circuitpython,henriknelson/micropython,kerneltask/micropython,tobbad/micropython,SHA2017-badge/micropython-esp32,lowRISC/micropython,bvernoux/micropython,blazewicz/micropython,dmazzella/micropython,tobbad/micropython,henriknelson/micropython,torwag/micropython,dmazzella/micropython,AriZuu/micropython,tralamazza/micropython,torwag/micropython,trezor/micropython,lowRISC/micropython,adafruit/micropython,adafruit/circuitpython,pfalcon/micropython,Timmenem/micropython,infinnovation/micropython,micropython/micropython-esp32,blazewicz/micropython,trezor/micropython,ryannathans/micropython,henriknelson/micropython,henriknelson/micropython,infinnovation/micropython,swegener/micropython,torwag/micropython,SHA2017-badge/micropython-esp32,pramasoul/micropython,MrSurly/micropython-esp32,tobbad/micropython,selste/micropython,selste/micropython,swegener/micropython,infinnovation/micropython,pfalcon/micropython,adafruit/micropython,torwag/micropython,Timmenem/micropython,MrSurly/micropython,MrSurly/micropython,oopy/micropython,blazewicz/micropython,trezor/micropython,AriZuu/micropython,SHA2017-badge/micropython-esp32,trezor/micropython,adafruit/circuitpython,adafruit/circuitpython,bvernoux/micropython,swegener/micropython,pfalcon/micropython,MrSurly/micropython,selste/micropython,kerneltask/micropython,pramasoul/micropython,selste/micropython,oopy/micropython,Timmenem/micropython,AriZuu/micropython,MrSurly/micropython,bvernoux/micropython,henriknelson/micropython,ryannathans/micropython,micropython/micropython-esp32,MrSurly/micropython-esp32,blazewicz/micropython,dmazzella/micropython,adafruit/circuitpython,infinnovation/micropython,MrSurly/micropython,AriZuu/micropython,ryannathans/micropython,micropython/micropython-esp32,MrSurly/micropython-esp32,tobbad/micropython,adafruit/micropython,tralamazza/micropython,bvernoux/micropython,SHA2017-badge/micropython-esp32,pramasoul/micropython,adafruit/micropython,MrSurly/micropython-esp32,lowRISC/micropython,torwag/micropython,pozetroninc/micropython,pozetroninc/micropython,dmazzella/micropython,pfalcon/micropython,SHA2017-badge/micropython-esp32,adafruit/circuitpython,selste/micropython,kerneltask/micropython,swegener/micropython