Feat: Add MAP-Annealing Repertoire (to run CMA-MAE)

[Lookatator]

Related issues: #181

This PR introduces: A MAP-Annealing repertoire MAERepertoire which can be used to run a CMA MAP-Annealing algorithm (CMA-MAE).

Checks

• [ ] a clear description of the PR has been added
• [ ] sufficient tests have been written
• [ ] relevant section added to the documentation
• [x] example notebook added to the repo (N/A)
• [ ] clean docstrings and comments have been written
• [x] if any issue/observation has been discovered, a new issue has been opened (N/A)

Future improvements

N/A