Changes since last release:
- add delay & beep after vtx flashing
- improve osd update method to reduce cpu load
- build record app from sources
- adopt new versioning scheme
- add 16:9 and 4:3 osd mode
add ability to mark dvr file as "hot" by clicking right button on the playback screen*- fix dvr restart on esp backpack channel change
- add ability to manually specify lipo cell count
- fix HDMI input timing for 720p100 and 1080p60
- fix oled wake up after idle off
- add wired head tracking
- add note about exiting the playback page
- double click right button to reset HT centre point
- fix elrs backpack recording while in the menu
* A Bug was discovered on the playback screen -
pressing the right button will hang the application.