Add iFlight Commando8 ELRS PR fixed version2

[XING-IF]

Add iFlight Commando8 ELRS PR fixed version2 PR1902 seems to be unfixable broken for some reason, so we started all over and integrated latest changes and corrections. Sorry for this approach, I hope this will be OK now.

Companion files will be updated with another commit. Based on the EdgeTX PR #1902

[edit: pfeerick] To power on or off this radio, you double press the power button.

• The first press shows the battery
• The second actually powers it on or off

To access DFU or bootloader, you press the left joystick down (not centre press) and then while holding that down, hold down the power button. After about a second, the battery indicator will start animating. If USB is connected, it will go into DFU mode. If not, the bootloader menu will be shown.

To access the USB (for storage, joystick mode), you need to press and hold the power button after plugging in the USB until the battery leds animate. On initial connect it appears to be in charge mode. If you want to disconnect and resume charging, press and hold the power button again until the animation stops. [/end edit]

[deadbytefpv]

Tested the binary from this PR. All seems to work on my initial and short testing.

None of the issues I've reported on the older PR #1902 Will have a play with the radio a bit more and report back should I notice anything amiss.

[XING-IF]

I think we're finally there, as well as all changes from PR1902 have been successfully ported to this PR.