[Engine - Pathfinder] Benchmarks

[persn]

I've been meaning to make benchmarks for the pathfinder in a way that can be easily setup and tested on multiple computers. What I've been doing before is hard coding in Stopwatch instances, writing down the results on paper, and calculate the average result on my calculator. Would be neat if there was a better way of doing this.

Apparently there's this new hip trendy framework that can be used for making benchmarks easy, should be worth looking into. https://github.com/dotnet/BenchmarkDotNet