Preparing for Submission to SLD

Improvements to content and construction to prepare the CSE Club Constitution for approval by the membership and submission to Student Leadership and Development.

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Changelog:

- Massive cleanup of formatting to all be proper Markdown
- Addition of Python build script (in progress) for building markdown into `.html`, `.pdf` (LaTeX), and `.docx`.
- Clarification of language in all sections
- Creation of Board, Officers, Cabinet, and Coordinators sections, laying out the new rules for officers.
- Per @dallbee, changes to licensing to not specifically list valid licenses.
- Inclusion of todos to keep track of work to be done.
- Separation of By-Laws into their own document.
- Myriad other changes to improve and cleanup the Constitution before submission.