The Witness: Implement "Variety" puzzles mode (#3239)

* Variety Rando (But WitnessLogicVariety.txt is wrong

* Actually variety the variety file (Ty Exempt-Medic <3)

* This will be preopened

* Tooltip explaining the different difficulties

* Remove ?, those were correct

* Less efficient but easier to follow

* Parentheses

* Fix some reqs

* Not Arrows in Variety

* Oops

* Happy medic, I made a wacky solution

* there we go

* Lint oops

* There

* that copy is unnecessary

* Turns out that copy is necessary still

* yes

* lol

* Rename to Umbra Variety

* missed one

* Erase the Eraser

* Fix remaining instances of 'variety' and don't have a symbol item on the gate in variety

* reorder difficulties

* inbetween

* ruff

* Fix Variety Invis requirements

* Fix wooden beams variety

* Fix PP2 variety

* Mirror changes from 'Variety Mode Puzzle Change 3.2.3'

* These also have Symmetry

* merge error prevention

* Update worlds/witness/data/static_items.py

Co-authored-by: Exempt-Medic <60412657+Exempt-Medic@users.noreply.github.com>

* no elif after return

* add variety to the symbol requirement bleed test

* Add variety to one of the 'other settings' unit tests

* Add Variety minimal symbols unittest

* oops

* I did the dumb again

* .

* Incorporate changes from other PR into WitnesLogicVariety.txt

* Update worlds/witness/data/WitnessLogicVariety.txt

Co-authored-by: Exempt-Medic <60412657+Exempt-Medic@users.noreply.github.com>

* Update worlds/witness/data/WitnessLogicVariety.txt

Co-authored-by: Exempt-Medic <60412657+Exempt-Medic@users.noreply.github.com>

* Update the reqs as well haha

* Another difference, thanks Medic :§

* Wait no, this one was right

* lol

* apply changes to WitnessLogicVariety.txt

* Add most recent Variety changes

* oof

---------

Co-authored-by: Exempt-Medic <60412657+Exempt-Medic@users.noreply.github.com>

worlds/witness/regions.py

@@ -30,6 +30,8 @@ class WitnessPlayerRegions:
             self.reference_logic = static_witness_logic.sigma_normal
         elif difficulty == "sigma_expert":
             self.reference_logic = static_witness_logic.sigma_expert
+        elif difficulty == "umbra_variety":
+            self.reference_logic = static_witness_logic.umbra_variety
         else:
             self.reference_logic = static_witness_logic.vanilla