Add Benchmarks to Build

[SkyeHoefling]

Description

Add a standard set of benchmark tests that we can use to compare from build to build. This will be useful in evaluating if a PR has added a significant performance slowdown

[kenny-sellers]

Example of working benchmark build can be found here: https://github.com/FileOnQ/Imaging.Heif/blob/main/.github/workflows/benchmark.yml