[CA] [CA11] GPX export format

[b4a]

Thanks!

A good starting point would be the gpx export format from Navionics:

<?xml version="1.0" encoding="UTF-8" ?><gpx xmlns="http://www.topografix.com/GPX/1/1" version="1.1" creator="Navionics Boating App"><metadata><link href="http://www.navionics.com" /></metadata><trk><name>Marina Jacare Village</name><trkseg><trkpt lat="-7.035451" lon="-34.855103"><ele>11</ele><time>2019-08-22T13:14:09.151Z</time><extensions><navionics_speed>0.200</navionics_speed><navionics_haccuracy>10</navionics_haccuracy><navionics_vaccuracy>16</navionics_vaccuracy></extensions></trkpt>

I hope this feature request can be given High Priority since it is also about safety.