Add CytoDataFrame dependency; remove migrated code

[d33bs]

Description

This PR adds CytoDataFrame as a dependency to the project, which is now a migrated independent project. Alongside this I removed code which has been migrated and added a check for dead code through vulture and pre-commit. Some minor formatting changes were also applied through an update to pre-commit checks.

Closes #108

What kind of change(s) are included?

• Documentation (changes docs or other related content)
• Bug fix (fixes an issue).
• Enhancement (adds functionality).
• Breaking change (these changes would cause existing functionality to not work as expected).

Checklist

Please ensure that all boxes are checked before indicating that this pull request is ready for review.

• I have read and followed the CONTRIBUTING.md guidelines.
• I have searched for existing content to ensure this is not a duplicate.
• I have performed a self-review of these additions (including spelling, grammar, and related).
• These changes pass all pre-commit checks.
• I have added comments to my code to help provide understanding
• I have added a test which covers the code changes found within this PR
• I have deleted all non-relevant text in this pull request template.

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[jenna-tomkinson]

LGTM! 🎉

[d33bs]

Thanks @jenna-tomkinson ! Merging this in.