Create a way to track performance.

[se5a]

I think we need to start looking at tracking performance of the engine itself.
I'm unsure the best way to do this accurately and with low maintenance.
Can we use apveyor to do it and get consistent results?

The game engine does have a bunch of features for performance metrics and even a feature to save the results to a file.
ideally we automatically run something each commit to the branch so we can track how well the game is performing, and if a recent push degraded or increased performance, and by how much.