re-implement serial lights

[j0ndough]

Why are we doing this?

reduces electrical team overhead with respect to wiring, adds potential flexibility to # of lights down the line

Asana task URL:

Whats changing?

re-implemented lights over serial communication (via USB) and removed previous DIO implementation.

added checks in BaseRobot to detect which USB port has a USB drive plugged in (currently just checks if device in first port > 10 MB in capacity). assigns log location to this port if true, otherwise falls back to other port.

Questions/notes for reviewers

I was not able to test this implementation with a working USB drive. Lights over serial works regardless of which ports are occupied, but will need to verify if logs are being written to the drive.

Important note: If USB devices are unplugged/replugged into different ports without restarting the RoboRIO, this implementation breaks.

How this was tested

• unit tests added
• tested on robot

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  • https://app.asana.com/0/0/1208982314668959