ENH: updates for SC

[ZLLentz]

This is deployed as-is for lpmps and kpmps. kpmps isn't quite ready yet for the new PVs.

Some of the code is a little messy, sorry about that.

Big ideas:

• Now supports the superconducting "beam class" concept where applicable.
• Now has three modes: "NC" mode, "SC" mode, and "Both" mode to reduce clutter. The "Auto" mode will pick NC or SC depending on what the PV says, or both if the PV is disconnected.
• Added a beam class tab that shows all the beam class definitions.
• Added tooltips for eV ranges and beamclasses to help understand what is being done.
• Various logic and layout fixes.

Original to-do list:

• [x] Test again once we update the PLCs + their IOCs
• [x] Add beam mode (NC vs SC) to the top of the page
• [x] Show current beam class instead of current rate at top of the page when in SC mode
• [x] Add beam class and/or beam class range to pre-emptive request table
• [x] Add beam class and/or beam class range to control page
• [x] Add a beamclass table tab
• [x] Add beamclass tooltip wherever relevant
• [x] Add the beamclass bitmask to the pre-emptive requests tab
• [x] Remove GEM from LFE arbiter configuration
• [x] Show beam class name, not just number
• [x] Show max beam class summary column in preemptive requests page instead of the 0: no beam PV
• [x] Resolve behavior of UI in requesting beam classes (BC range vs BC selector? Summarize in PLC or in UI?)
• [x] Add tooltip for bc range
• [x] Add tooltip for ev range
• [x] Switch for turning the auto show/hide off and on
• [x] Improve photon energy range tooltip - summarize over spam
• [x] add line beam parameter control readbacks for the bitmasks
• [x] Arbiter outputs tab on the left is pretty bad, it needs to be remapped to the 4 bits we picked
• [x] refactor tooltips and add to line beam parameters page
• [x] plc ioc status handling for missing cycle 2 and 3 pvs
• [x] even better ev tooltip: use the "denied" ranges if it's a shorter summary

And maybe more?

[ZLLentz]

This is now... maybe done? It feels pretty done.

The repo as-is is the live lpmps screen. It's also the live kpmps screen but the kfe arbiter IOC is offline (and likely not updated to include the beamclass stuff even if it came up).

There's a disconnected PV at the top for the NC vs SC mode from ACR. I don't know if the PV I'm using is wrong or if there's some gateway issue. The screen uses this value to hide/show things dynamically, but you can also manually try this feature using the combobox override at the top that starts off at "Auto". With the PV disconnected, "Auto" is the same as "show both NC and SC". Otherwise, with the PV connected, it should automatically show NC only or SC only as appropriate.

The line beam parameters tab always shows both sets of controls because you might want to set the non-active side to zero.

[ZLLentz]

Oh you're totally right, the grafana panel is SOL right now. I'll add an issue for that (it's been in the back of my mind/ignored since a previous iteration was crashing the GUI)

[ZLLentz]

I'll opt to just add a new screenshot and more context to https://github.com/pcdshub/pmps-ui/issues/75

[ZLLentz]

One more thing to add before merging: I guessed wrong and the mode pv (NC vs SC from ACR) is an enum, not a string. So I need to use the enum str etc. etc. to make my Auto mode work.

[ZLLentz]

Ok let's close this here and do any follow-up work in another PR as needed