all calls to qsTr are done, if I didn't forget anything,
on the PX4 QML files.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

- Sensors summary now shows you how man compasses you have
- Fix for APM accel cal. Can only use first accel offsets.

Plus lots of other tweaks to ui for visuals

Everything is now based off of default font pixel size

Also adding a constant for the font size in SensorComponent.

- cancel support
- mag rotation images
- set board rotation before cal
- set compass rotation after mag cal

Also changed to pull specific small parameters set after cal instead of
full refresh. This way, the red/green indicators update much more
quickly.