BrainFPV support

[fujin]

With the relaxation of strict open-hardware policies it will be possible for us to have BrainFPV in-tree, with unified GCS, packaging, release timelines, if @BrainFPV is up for it.

What needs to be done to make this happen? Is everyone OK with the idea? Brain is a great, commodity board with excellent performance.

[tgreer]

+1 to this. I love the brain hardware, it bugs me that (though no fault of @BrainFPV) there's a delay in stuff making it down to the brain tree.

[jihlein]

Could possibly do the same with the Dodo, cleaning up (primarily removing the bootloader) the code I already have.

[fujin]

@jihlein Logged issue: #9 👍

[fujin]

Latest @ #36

[tgreer]

Closing this as #36 has now been merged. Yay!