Landing Pattern: Loiter to alt optional support

New LandingComplexItem base class for landing patterns

Major rework to support terrain profile display and terrain collision reporting

Drag of land/loiter maintains land distance/heading as appropriate

Mavlink terrain protocol support

Wizard Mode for Create Plan

New Create Plan support

Fix Survey additionalTimeDelay as it relates to hover and capture

Make settingsGroup public for custom build overrides

Move valueSetIsDistance to Fact so custom builds can override

FW Landing Pattern: Support for stop photo/video. Plus item unit test.

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Plus fixed a bunch of bugs

Should be all working now except for distance < radius cases.

Also added ui support for multiple complex item types