Raw testing data in the repo

[avsaase]

UAVTech did a video where he showed testing results of the popular RC link systems. Unfortunately, his plots aren't great so I was hoping to make some better ones, especially box plots to give a good overview of latency and jitter. These plots could also be used in the readme in the main repo. I asked Mark for his raw testing data but he didn't reply.

It would be nice if this repo collects testing data in a standardized format so that other people can do analysis without having to buy/borrow all systems. There would need to be some instructions about how to exactly do the tests to make things comparable.