* Locationd live_kf using c++ kalman filter
* use both cpp and python live_kf to compare
* Locationd using ekfsym cpp
* Paramsd using c++ ekf_sym
* Other building method
* Cleanup
* cleanup
* Single sconscript for rednose and locationd/models
* CI
* CI
* CI fix
* renamed scons config
* Fix lib loading
* bump rednose
* update cpu usage test
old-commit-hash: e6a8157916e9f8365f3f4ac70e49a552e40a8511