Clean up the plate clips.
New connection through pins.
Cleanup unneeded clip stuff.
Work on new support pins.

Modified the plates to be connected by clip pins.
Added a test module that allows testing the pins without building the
whole lens assembly.
Modified the pins with ideas from Tony Buser's Pin connector designs.
Access for support test.
Next test of support pins.

Widened gap for small pins.
Made pins rounder.
Corrected positioning and height of pins on test bed.
Minor cleanups for readability.