[PathPlanner]: Added refresh timer to prevent flooding of the graphics
system. At 40 waypoints and 80 path segments, GCS would stall and crash due
to the load. Now it handles all points in less than one second.
[PathManager]: 1) Fixed timeout state not to spam the PathManagerStatus
UAVO
2) Handle path segments which are impossibly close together.
3) Overshoot test returns a value
Remove deleting of markers. In the end, this is a non-workable, bad idea.