Improve in / out of focus transitions: Added a function which detects if the yaw value changed significant while in focus state. This event is typically pointing to a arm movment => diver is no longer focussing at the OSTC. Improve custom view mapping: Added a direction indicator to the focus distance value (now +/- values instead of absolut values before). With this modification custom view sectors may have the double size and are threrfore easier to be controlled.

Heinrichs Weikamp OSTC4 update files.

The builds are for testing purposes only. Be careful, they might not work and are definitely not recommended for real dives.