Trial Spawners and Vaults support (#2790)
* Trial spawners and vaults compatibility
* slight fixes
* added BlockDispenseLootScriptEvent to accommodate vault loot dispensing
* minor changes
* meta correction
* minor changes
* better item checking for context
* removed variable from determination
* clarified OminousItem`Spawner`
* minor changes
* fix for npcs
* minor changes
* minor changes
(
commit: 87709c7)
