combine code/.gitignore and the one at the root of the repo
.bandit was part of codacy checks suite, current python code
should probably be updated to use either pylint directly and (/ or)
through the codeql python workflow
* 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
- update file paths: .pioenvs -> .pio/build, .piolibdeps -> .pio/libdeps
- modify envs to use common settings
- enable shared libs in travis and ota scripts
