Show the estimate time to the waypoint

- new method `getTimeToWaypoint()` to display the current estimate time
to the waypoint
- change the position of text
Distance to waypoint changes.
Merge pull request #4 from Peppie23/time_to_waypoint

Show the estimate time to the waypoint
Formatting changes to ETA.
Fixed altimeter display issue.
Version 1.2.2
Merge pull request #1 from jrossignol/master

Sync master