Release version 1.20.0, candidate 1.
New Features
- Added new `DeviceIDMessage` definition
- Added new `HeadingOutput` message containing calibrated heading
measurement after applying bias corrections
Changes
- Refactored log search to check: exact file matches, local
files/directories, local glob patterns, log dir pattern match
- Renamed `HeadingMeasurement` to `RawHeadingOutput`
Fixes
- Allow for a small tolerance in `p1_print` time restart check to account
for latency between measurement data and solution output
- Clarified ROS IMU message covariance definition
- Fixed incorrect start time printout if `p1_display` uses a different t0
to establish relative time offset
