MuSR: 3He Refrigerator Implementation

[KathrynBaker]

As a developer, I would like to make sure that I don't miss anything in the implementation of the 3He Refrigerator in IBEX.

There are multiple tickets associated, and once all are complete, this ticket is also complete:

• Initial Investigation: MuSR: 3He Refrigerator Investigation [TIMEBOX for investigation: 1/2D] and implementation #5959
• Document VI control logic: MuSR: 3He Refrigerator Document VI Cryogenic Control Logic #6239
• Implement control logic: MuSR: 3He Refrigerator Implement Cryogenic Control Logic #6240
• Communications: MuSR: 3He Refrigerator Communications #6241
• OPI: MuSR 3He Refrigerator OPI #6244
• Machine setup: MuSR: Discuss 3He Refrigerator Machine Setup #6242
• Testing on Device: MuSR: 3He Refrigerator Testing #6243
• Autorecondense: MuSR: 3He Refrigerator Autorecondensing #6292 (not required for running)