Implement autonomous chooser

[jkleiber]

Summary
While #24 is implemented, we should work on making an autonomous chooser. This will allow the driver to select which autonomous script to run during the match. Here are the requirements:

1. The autonomous chooser shall display a list of available files to choose from on shuffleboard
2. The autonomous chooser shall indicate on the list which file is currently selected
3. The autonomous chooser shall be controlled using the D-Pad on the driver or manipulator gamepad
4. The autonomous chooser shall only be active in disabled mode
5. The autonomous chooser shall update what files are available automatically as new files are uploaded to the robot

Work

• Implement an autonomous chooser that meets the above requirements

Verification

• Requirements met
• CI passes