Tool to convert assignments in GeoJSON files to waypoints in a new gpx file.
Deisgned for use in converfting SAR TOPO assignments to waypoints/markers as corners
GeoJson translation to GPX is done on the client side
GeoJson can be exported from SAR topo containing the assignment
Only do 1 assignment at a time(for now)
Returns a GPX file with the corner points labelled corner 0 -> corner n-1
Points of interest / waypoints seperate to the assignment polygon should be exported directly as GPX