Stringmatch

- Added partial ratio function
- Added include_partial keyword to most matching functions
- These will both search for partial substrings within the strings for better results
- Updated docs to reflect those changes
- Added test cases to make sure everything works as intended
- Added numbers to only_letters keyword
- Might re-name that in the future
- Added args module for cleanup

- Moved scorer into its own module
- Clarified Readme section about scorers

- Reverting v0.7.0 changes with mypyc
- This was causing too many issues, sorry

- Fixed installation for pip
- Added link to Readme
- Added verbose flag

- Using mypyc now
- Should bring a significant speed boost
- Added mypy to requirements
- Added build-system section to pyproject.toml

- Added typehints for kwargs in preparation for using mypyc (maybe)