MAJOR refactoring of many things into "PlanningCommon" library
Missed dependency from last commit
Moved importers/exporters to PlanningCommon lib
Added signal to PlanningProblem for when uav params change
Added support for PlanningProblem to WaypointPlanner
Reorganized WaypointPlanner (added gui folder)
Renamed currentWayset() getter in WaysetManager

to just "wayset()"
Extracted common import/export code to PlanningCommon.

modified both interfaces to take advantage of it.
Moved dubins wayset objects into PlanningCommon
Renamed WaysetManager -> WaysetDisplayManager
Reduced code duplication in MapGraphics/Position
Removed magic number in UAVOrientation
Fixed weird paint-related angle arithmetic in Waypoint
Added new "Wayset" class
Replaced QList<Position> with wayset class