Add GitHub Action to visually represent the codebase

[usmcamgrimm]

Description

This adds a visual representation of the VWC codebase. It shows each file, color-coded by file type, along with the a representation of the file and folder size.

Related Issue

#279

Motivation and Context

Requested by Jerome because it's very useful.

How Has This Been Tested?

I ran the same code on my repos and verified it functions.

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [x] All new and existing tests passed.