Add option to export GPX-Files as Route

[pilian]

Today the export GPX-Files contains a track with trackpoints.

For planing purposes is is helpful to export the route-format. <rtept lat="49.875892" lon="8.617244">

Please add an option for the route-format.

A track is the recorded path you did actually, while driving, riding, hiking, A route is a sequence of waypoints as result of a plan for your navigation. A route shows where you plan to go. A track shows where you actually went.