Configuration files?

[`/benchmarks/README.md`](https://github.com/godotengine/godot-tests/blob/master/benchmarks/README.md) and [`/tests/README.md`](https://github.com/godotengine/godot-tests/blob/master/tests/README.md) both mention that configuration files of some sort should be included. However, no example configuration is given, nor is the format documented that these configuration files would need to be in.

Has that format been decided before? If so, it should be documented in those README files. Otherwise, I hope this issue could spark some discussion on what format the configs should use.