* modify reset logic
* remove debug statements
* use ecef pos and vel covariances during reset
* reset orientations initialized to 0,0,GPSbearing
* refactor nav fix
* add fake gps observations to control ecef pos and ecef vel std
* replace fake_P with individual fake cov
* set gps mode flag
* add gps invalid flag names
* update refs
* more accurate gps accuracy check + update refs
* live_kf to c++
* first locationd code
* Running in process_replay
* locationd handle cam_odo and live_calib
* log event handlers
* working message receiving
* compiling message sending
* correctly sending some messages
* correct receiving and sending
* update ref_commit with some all_alive_and_valid being false, minor fixes
* fix std abs
* linking on device fix
* fix cpu usage test
* generate kf constants and defines
* fix replay test
* replay without acks, cleanup
* operate on bytearray messages
* cleanup
* send msg fix
* small sleep, less flaky test
* remove python locationd
* review feedback
* bump rednose
Vivek Aithal
HaraldSchafer
Joost Wooning