Simple Benchmark

[jairbubbles]

• Simple benchmark that compares GitReader perf to libGit2Sharp
  • Repository is opened and we get all branches / stashes / tags
  • Tests are run for multiple frameworks
  • GitReader does not provide all info yet (for instance, it's missings tracked branches, tracking details etc...)
• Use PolySharp to allow using list patterns on older frameworks not only nullability

NB: I'm not too experienced with Benchmark.Net but there's probably room for improvements to make tests run faster without affecting the results

Here is an example of the output summary:

Method	Runtime	Mean	Error	StdDev
GitReader	.NET 6.0	4.865 ms	0.0512 ms	0.0454 ms
GitReaderStructured	.NET 6.0	69.200 ms	1.3674 ms	1.4631 ms
LibGit2sharp	.NET 6.0	22.208 ms	0.0958 ms	0.0748 ms
GitReader	.NET 7.0	4.853 ms	0.0210 ms	0.0196 ms
GitReaderStructured	.NET 7.0	68.018 ms	0.8555 ms	0.8002 ms
LibGit2sharp	.NET 7.0	22.183 ms	0.1585 ms	0.1405 ms
GitReader	.NET Framework 4.8	8.096 ms	0.0148 ms	0.0138 ms
GitReaderStructured	.NET Framework 4.8	249.047 ms	1.9543 ms	1.8281 ms
LibGit2sharp	.NET Framework 4.8	22.679 ms	0.1812 ms	0.1513 ms

[kekyo]

If all is well, please activate the review request. If you still have work to do, please continue.

[kekyo]

Merged!

There were a few problems, which will be corrected later.