Tracklog: add more options/file formats like GPX, KML/KMZ, shape (polyline)

Idea created by g.waldherr-esri-de-esridist on Sep 6, 2010

    This idea has been merged with GPX File Support.

    Add more options for tracklog file formats. Actually a point-shape is the only option. 
    I would like to have the following file formats:
    - gpx
    - kml/kmz
    - shape (polyline !)