Fix layer heights

More work on Structure Scan rewrite

Bug fixes for Structure Scan. Also includes support for Entrance/Exit Alt.

Add support for Start From Top/Bottom, plus more helpful stats

Use correct QT_TRANSLATE_NOOP to prevent crash

Default ROI altitude to 0

Show camera mode if plan contains it

Rework complex distance, camera shot count calc for better back compat

Save camera shots and complex distance in plan file so that values are valid when reloading

Should not rebuild transects for newer file formats where mission items are stored in file

Should not rebuild transects when loading. Mission items are already stored in file

Fix Survey additionalTimeDelay as it relates to hover and capture

Preserve clockwise winding when adjusting vertices

Add internal error case

Support for new AltitudeFactTextField

Make settingsGroup public for custom build overrides

Move valueSetIsDistance to Fact so custom builds can override

Default abort alt = 0. This works around problems between multi-rotor and fixed wing.

Radius to 1 decimalPlaces

Expose complex item names in a way useful for custom builds

Support custom build override of available complex items

Fix valueSetIsDistance when manual camera change