implemented majority of MOMP [#1031]

[joehiggi1758]

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Pull Request Checklist

Below is a simple checklist but please do not hesitate to ask for assistance!

• [x] Fork, clone, and checkout the newest version of the code
• [x] Create a new branch
• [x] Make necessary code changes
• [x] Install black (i.e., python -m pip install black or conda install -c conda-forge black)
• [x] Install flake8 (i.e., python -m pip install flake8 or conda install -c conda-forge flake8)
• [x] Install pytest-cov (i.e., python -m pip install pytest-cov or conda install -c conda-forge pytest-cov)
• [x] Run black --exclude=".*\.ipynb" --extend-exclude=".venv" --diff ./ in the root stumpy directory
• [x] Run flake8 --extend-exclude=.venv ./ in the root stumpy directory
• [x] Run ./setup.sh dev && ./test.sh in the root stumpy directory
• [x] Reference a Github issue (and create one if one doesn't already exist)

Hey @seanlaw - hope you had a great Saturday!

• Just realized I pushed the wrong code on the other PR
• Major apologies - I prefer to keep things clean for the team and myself (but am still learning a great deal and need to sharpen my skills)
• I've closed it to try and clean this effort up, please find the correct code ready for your review within this PR
• It's 85-90% complete, but could use feedback and direction