* PIO: remove -ota envs, handle OTA condition in extra script
* Tweak ESPURNA_BOARD variable
* Support git and latest in ota script
* Handle ESPURNA_FLAGS too
* Try to handle env and projenv in pylint
* Add deprecation comment about -ota envs
* regen arduino.h
* utils/version: use git description token as version, add memoization
* pio: move extra scripts to a separate directory
* pio: add -DAPP_REVISION=... as local build flag