Trying to solve allocation warnings.
Bitmap allocation is resolved.
Memory improvements on uiGraphics.create_pfd2 function & refresh_map_lines functions.
uiGraphichs  -> Waypoint markers modified to make it easier to drag & drop.
MainActivity -> Small bug about 'BatteryChanged' fixed.
Marker size changed to make it easier to drag & drop them.
App also accepts ivy messages over TCP connection.
Some code cleanup.
Small bug fixes.