* 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
old-commit-hash: 3420707ad58b060333246eb43db09474bb336d39
Dean Lee