* Avoid redefining pi, use instead math.pi or M_PI from math.h
* Revert overwriting of the gpsPi variable, which is part the GPS standard.
* Move standard library imports to top, remove standard library import comments.
* Before abstraction, adding speed init from VW as well
* strting to abstract carstate class
* fix bug and update lock?
* revert pipfile change
* another bug
* fix linter
* bug fix
* remove a bunch of diplicated kf code
* better to not have class vars. will abstract __init__ anyway later
* abstract common instance vars in carstate init and a generic gear parser static method
* abstract gear parser for chrysler
* abstract gm gear parser too
* remove unnecessary random vars
* Chrysler: carstate returns capnp struct directly
* revert ref commit
* test ref
* WIP
* more WIP
* ops, missed this conflict
* ford as well
* not sure why this got deleted
* no need to copy
* remove copy
* remove copy import
* remove unnecessary intermediate variable
* remove obsolete comments
Co-authored-by: Willem Melching <willem.melching@gmail.com>
