v2.1.1

This is a "developer-only" release.
The focus of this release was:

• code clean-up, and
• build infrastructure completion.

No significant functional changes were made.

What's Changed

• 7 unify code flow for przf and mmse equalization optimization by @capn-freako in #11
• FOM and COM results storage cleaned up. by @capn-freako in #12
• Factored utility module. by @capn-freako in #13
• 5 add a makefile by @capn-freako in #16

Full Changelog: v2.0.1...v2.1.1