[EVERYONE TASK] Document ALL Old Code

In a branch branched off from `PROG_Documentation`, go over every script you have written for Project TRT and document them according to the documentation guidelines:
* Variable names descriptive enough to understand
* Public inspector editable variables have tooltips unless no information is communicated outside of it?
* Comments for all public functions
* If possible/have time, document private functions
Format code comments as thus (can use `///` to autogenerate this)
```
///
/// Summary here
///
/// Text for param.
/// Apple sauce
```
PR into `PROG_Documentation` NOT `main`.
There won't be a QA pass for this task. We trust you.

Work from a branch based on PROG_Documentation and review every script in Project TRT. Start with the listed variable naming, inspector tooltip, and XML comment requirements, using the shown /// format for public functions and private functions where possible. Done means all scripts have been reviewed and the PR targets PROG_Documentation rather than main; the issue states there is no QA pass.

Written by the indexing model from the issue text.