Item SaveContext Logic (#4237)

* Port initial framework up to latest dev-rando. Includes about 15 items using the SCL structure for tracking.

* Most other item variables ported to SaveContext in UpdateHelpers.

* Removed individual Context retrievals in favor of single local variable in Logic to reference.

* start of some diagnostics.
caught some reverse logic with ApplyItemEffect.

* more diagnostics

* Resolve major logic issue with SetInventory flow in ApplyItemEffect.
Other small logic issues in ApplyItemEffect.

* Added a bit of logging.
Add Double Defense to item effects.

* revert hint gen bypass

* item_list *actually* divorced from logicVar pointers.
Several missed options for ApplyItemEffect, HasItem, and UpdateHelpers added in.
Changed HasItem to a switch block for more performance.
Seeds generate within 10-20 seconds in release mode. Further optimization is assumed possible.

* Some formatting

* Bit more formatting.

* Couple review changes.

* Incorporate progressive upgrades and skeleton key into SCL.
Bit of cleanup.

* Change `inLogic` to static array.

* Fix bug in `BottleCount()` preventing Jabu Jabu from ever being in logic.

* Fix bomb bag HasItem check.

* Fix Gerudo Fortress and Ganon's Castle SmallKeys checks.

* Change all logic use of `bool remove` to be `bool state` and work on the affirmative assumption.

* Forgot the `Set(x)` uses in `Logic::Reset()`.

* Fix fishing pole effect application.

* fishing pole tweak

* Add `RG_BOMB_BAG`, `RG_NUTS` and `RG_STICKS` to `HasItem()`.
Fix silver and gold gauntlet checks in `HasItem()`.
Change Nuts and Sticks helpers to use non-progressive RGs in `UpdateHelpers()`.

* Change mSaveContext to simple pointer.
Set `mSaveContext` to `&gSaveContext` when loading a save file.
Modify `Item::GetGIEntry()` to use rando context's SaveContext pointer instead of the gSaveContext macros.
Utilize `Item::GetGIEntry()` to get real RG of infinite upgrades and set rando infs accordingly, skipping upgrade level incrementing (which was causing overflow of wallets for some reason).

* Rename all remaining references of LogicVar to variants of LogicVal.

* Change final references to song LogicVars to CanUse calls, and remove them.

* Separate equip and rand inf flag maps.
Add Zelda's Letter and Weird Egg rand infs to map.
Consolidate `HasItem` rand inf  lookups using rand inf map and equips using equip flag map.
Maps are static, so can be referenced with `Context::` instead of ctx pointer.

soh/include/variables.h

@@ -94,6 +94,7 @@ extern "C"
 	extern u16 gEquipMasks[4];
 	extern u16 gEquipNegMasks[4];
 	extern u32 gUpgradeMasks[8];
+	extern u32 gUpgradeNegMasks[8];
 	extern u8 gEquipShifts[4];
 	extern u8 gUpgradeShifts[8];
 	extern u16 gUpgradeCapacities[8][4];