Add untracked changes

Changed to sorting commits by unix timestamp. This fixes issues with formatted date strings not sorting correctly.

Commit log and tree listing now correctly sorted. Commits are sorted by date descending, and trees are sorted alphabetically.

Added blob viewer, extended tree page.

Added ability to browse refs other than HEAD. Specify a branch with the 'branch' query. Specify a tag with the 'tag' query. Specify any ref with the 'ref' query.

Log and Tree browse pages updated. Both pages were formatted and now display correct information. Css was generated with tailwindcss cli and embedded in the base template.

Spruced up the browse page. Split pages into different templates all embedded in the base template.

Added license: University of Illinois/NCSA Open Source License

Initial commit: Working POC