added basic mecp test

[joshkamm]

Description

Add a basic test that calls the mecp code (unconstrained optimization on a penalty pes)

Todos

Notable points that this PR has either accomplished or will accomplish.

• [x] Implement changes
• [x] Update tests
• [x] Look through pull request changes
• [x] Clean up code and retest

Status

• [x] Ready to go

closes #59