v0.6.9

Added support for KISS Ultra to Flight Controller detection. Thank you to @fedorcomander !

KISS Ultra fonts are named with _ultra_ in the file name.

This release updates the goggles only, the air side remains at v0.6.8.

For documentation about automatic FC-based font selection, please see the README:

https://github.com/fpv-wtf/msp-osd#choose-a-font