GNSS speedometer

Invalid date

- You can now reset the average or maximum speed with a long click on the value.
- Slightly changed the default GPX and KML file names to properly sort by date/time by the file manager. For example, it was "2021-02-25_10h47m31sAM", now "2021-02-25_AM10h47m31s".
- Android multi-window support