REV Robotics Power Switch Strain Relief

This adds additional strain relief to a Rev Robotics power switch, required in FIRST FTC robots. In the past our team, FTC #12598, has had the lugs coming loose or breaking off, and this has also been an issue with other teams.

Print with a brim so that the curved extension stays attached to the build plate.

Slip it on and then tape it in place, including over the wires. (For clarity, the photo does not show it taped)