Mitsubishi encoders

it's not 100% proven information but what managed to unearth

Mitsubishi servos such HA-FF usually have OBA17-051 or OBA17-052 encoders.

stmbl has support the "mit 02-4" and "mit 02-2" protocols

• code(encm.comp)
• new implementation
• some protocol description
• hints

TODO: wiring