Franklin Ace-1000 keyboard

This keyboard was contributed by Chris Ryu. His orignal project is at https://github.com/ryucats/Franklin-ACE-1000-Keyboard/tree/main

The original design has been modified in the following ways:

Uses the dual footprints for futaba / cherry keys.
include a diode for every key.
Add stabilizers to the spacebar
The Franklin keyboard is 9u, but it's very hard to find a 9u option. Instead, use 8u+1u
Add cherry and futaba aligner plates
Replace the LOCK key with a 1.75U key with LED window. Fix LED spacing to match original.
Create a spreadsheet with a specification for a keycap set.