Migbot level sensor fine adjust

The square sensor that is used on the Migbot for auto leveling is in desperate need of a fine adjust mechanism. There are a few other solutions to this issue that have been published in the Thingiverse, props to those creators. This is my version.

There is some extra hardware required:

M3x20 screws and nuts already being used to mount the sensor
M3x8 (quantity 2) and nuts to mount the body to the sensor strut
M3x30 and nut for the adjustment screw
M3x20 and nut for the locking screw