Documenting UDP protocol

[Chuigda WhiteGive]

I was writing a 3D model puppeteering program based on OpenSeeFace. It seems that the documentation of the UDP protocol is somewhat missing. I made my personal "summary" according to multiple code snippets I've found.

I've been thinking about opening a pull request for creating such a documentation.

[Emiliana]

More documentation would be welcome!

https://github.com/chuigda/Project-WG/blob/b6b2901e4a0e1bb2e9db1fcd838fdea00f36f3eb/src/ui_next/track/OSFTrackControl.cc#L122-L128

These should probably be be "eyebrow*"