The Witness: Event System & Item Classification System revamp

[NewSoupVi]

Two things have been happening.

Incorrect Events
Spoiler logs containing events that just straight up have an incorrect name and shouldn't be there. E.g. "Symmetry Island Yellow 3 solved - Monastery Laser Activation" when playing Laser Shuffle where this event should not exist, because Laser Activations are governed by the Laser items.

Now to be clear - There are no logic issues with it. The event will be in the spoiler log, but it won't actually be used in the way that its name suggests.
Basically, every panel in the game has exactly one event name. If the panel is referenced by another panel, it will reference the event instead. So, the Symmetry Laser Panel location will reference Symmetry Island Yellow 3, and an event is created for Symmetry Island Yellow 3. The only problem is the name: The canonical name for the event is related to "Symmetry Island Yellow 3" is "Monastery Laser Activation", because that's another thing that panel does sometimes.

From now on, event names are tied to both the panel referencing and the panel being referenced. Only once the referincing panel actually references the dependent panel (during the dependency reduction process in generate_early), is the event actually created.

This also removes some spoiler log clutter where unused events were just in the location list.

Item classifications
When playing shuffle_doors, there are a lot of doors in the game that are logically useless depending on settings. When that happens, they should get downgraded from progression to useful. The previous system for this was jank and terrible. Now there is a better system for it, and many items have been added to it. :)

Tested
✅ 2000 generations with fully random settings to see if there are any generation failures
✅ Looking at a lot of spoiler logs to see whether seeds are still beatable or some logic issue has crept in, checking whether the right events exist or not

Some tested cases (all involving disable_non_randomized, as its the only setting that uses conditional events at the moment):

• Door shuffle Yes/No -> "Town Tower 4th Door Opens" event doesn't exist / exists
• Laser shuffle Yes/No -> "X Laser Activation" events don't exist / exist
• Symbol Shuffle off + Doors: Panels -> "Jungle Popup Wall Control Solved" is not an event location
  The last one is of particular importance because it uses both of the new systems to their full effect. In the new systems, the item is downgraded (downgrade system), and as a result, the event doesn't get created (conditional event system).

More commits may get added as we discover other items that can be made conditionally non-progression.

[Exempt-Medic]

Tested that the item classification changes worked for each item and confirmed the proper events were being removed in those generations. Also did 2K extra generations and sampled 100 spoiler logs. The only error I found was fixed in the most recent commit. Played two worlds to check it all worked in-game as well. Code looks good to me.

[NewSoupVi]

Alright, Just wanted to make sure that the merging of https://github.com/ArchipelagoMW/Archipelago/pull/2503` didn't create any conflicts. Did another few hundred test gens for good measure.

Thanks for the checkmark Berserker! This should be good to go now :)