Add Unit Testing Framework

[adamgarcia4]

Establish UT framework to enable:

1. Remote development
2. Code Reliability
3. Teaching Java to occur within the scope of FRC programming (instead of just theoretical).

Tasks:

• [x] Add Sample Test
• [x] Set up CI using Github Actions
• [ ] Update README.md
• [ ] Look at Guice for dependency injection

[adamgarcia4]

Resources:

1. Unit Testing Subsystems
2. 997 Mentor going Walkthrough
3. 972 Codebase with lots of testing
4. Random Presentation on Unit Testing