MJX rc car protocol

[pascallanger]

Discussed in #915

^{Originally posted by nzjott December 14, 2023}
hi just got my radiomaster tx12 here and want to use it on mjx 14302 hyper go rc cars, but I can't find a right protocol for it. I attached original rc for it.

[pascallanger]

@CGPro856: I will track progress here