Use constant's inverse to ensure we don't accumulate error when converting back and forth

This is all going away in 3.1 so don’t want to spend time fixing broken
font sizing

Adding a dialog telling the user the map cache database has been reset.

Channel 6 Min Max

Channel 6 Tuning for APM Copter in tuning section

Remove Colon in Label

In Flight Tuning label

Too buggy to leave it in for 3.0 release

* Add volt/amp calculators

* Correct amps per volt calculation

* Update param meta

* Implement trigger interface UI