* calibrationd: convert existing calibration to numpy * use numpy functions old-commit-hash: 8444f8267da10aaf52789d03f6d46d6b90be13ab
old-commit-hash: f7cf66867bff75f5b53b6d0a2919a67e6e22242f
* calibration tests * read from capnp * save using cereal struct * reset calibration if new car * car params old-commit-hash: ee43eb552b9a5d5d1cfea65f00150325c9808a2d