Multiselection of Waypoints

[TinyCrocodile]

Enable multiselection of waypoints to make it possible to edit whole course-segments.
This opens new possibilities like moving whole couses or make a couse-Segment horizontal etc.

• Change Selection function to be able to multiselect waypoints

• Normal click selects Starting waypoint. ctrl+click selects ending waypoint, all waypoints in between are selected.

• Update events and eventhandler of selection

• Update delete

• Update movement

• Update directioncalculation

• Lock Position textboxes

• Update speed and angle textboxes

• Lock Waitpoint and Turnpoint and Crossing Checkboxes

• Update Reverse checkboxes

• Lock all insert Waypoint and add waypoint buttons