For VTOL and FW set default landing heading to takeoff heading when TakeoffMissionItem is added in PlanView

Fix recalc bugs associated with vtol state, speed, vehicle/gimbal yaw

No need to call setMissionFlightStatus on newly created items

Initial support for global plan-wide altitude mode setting

Rework handling of fw/vehicle type with respect to conflicts with actual vehicle types.

Fix VTOL hover determination

Major rework to support terrain profile display and terrain collision reporting

VTOL Landing Pattern support

Much better mission->kml conversion support

Plan: Add support for takeoff item required

Mavlink terrain protocol support

WimaController MissionController WimaDataContainer WimaPlanData WimaPlaner reset to ae16d99f, and centering of flight map after mission upload (wima menu) improved (centering only if map not centered to vehicle)

insertSimpleMissionItem(const QList<const MissionItem *> &, int) and _initVisualItem(VisualMissionItem*, bool) added to MissionController

Add support for incomplete segment visuals

Support move item to previous item position

Active ROI indication in Plan Map items

Cancel ROI support plus many big fixes

New user model for Takeoff item

More work on contextual Plan tools

A contextual Land/RTL tool. Better waypoint line calc.

More work getting _addMissionSetting right

Fix handling of _addMissionSettings

Support for new TakeoffMissionItem and Takeoff Tool 

Fix save state checks. Show overlay on New.

Wizard Mode for Create Plan

New Create Plan support