Restore Arm Fine Adjustment & Auto Program Setting

[JohnGilb]

Why are we doing this?

Fixing a bug where the operator's D-pad would not move the arm in small increments.
Also set up the basics for "auto setters" so we can choose auto while the robot is disabled.
Asana task URL:

Whats changing?

• Removed the default "set arm target to current position" in the default command map, as that was blowing away settings made by SetArmExtensionCommand.
• Auto programs can be set via commands (such as using the bottom buttons on the neotrellis)

Questions/notes for reviewers

How this was tested

• unit tests added
• tested on robot
• tested in simulator