add the baz plugin manager for bash

[ar1ja]

Checklist for submitting a pull request to Terminals Are Sexy:

• I have carefully read and comply with the Contributing Guidelines of this repo.
• I have searched the PRs of this repo and believe that this is not a duplicate.

• Title: baz
• Link: https://github.com/TruncatedDinosour/baz
• Category: Bash
• Description: A fast, lightweight and easy plugin manager for Bash.

[ar1ja]

i thought i might make a pr as the bash section has 0 plugin managers