v2 release with resctl-bench

This release adds resctl-bench - a collection of whole-system benchmarks to evaluate resource control and hardware behaviors using realistic simulated workloads.

v2 alpha release for testing cargo publishing

Merge pull request #220 from htejun/misc

Bump version to 2.0.0-alpha. Fix version string parsing.

Initial release

1.0.0

Make versioning work and tag 1.0.0 release