- Adds AlphaAPI.entities.keyed, should be more performant
-- Indexed [Type[Index]]
-- Rewrote AlphaAPI.getEntityFromRef and AlphaAPI.getRoomEntitiesByType to utilize this.
- Save file handling now works properly on save files other than file 1.

- Reworked functionality of AlphaAPI.playOverlay

- Added system for managing entity heights
- Added support for base callbacks in AlphaAPI.addCallback
- Added a warning when callback function does not exist
- ENTITY_* callbacks now automatically cast the entity being passed in to the highest level

- Added AlphaAPI.resetSpriteScale(tear, animPrefix)
- Changed last base item in code to reflect booster pack

> Reverted changes made in the previous version due to causing issues with unlocks. Please note that as the API is, mod save data will not work effectively on save files 2 & 3. We are looking into it!

- Data is loaded on POST_GAME_STARTED rather than when mod is registered

- Mod data is now saved on game exit, alongside the 5 second interval.

- Fixes a crash when indexing entities in certain callbacks
- Fixes "return" not working when using an ItemObject or CurseConfig to add a callback

- Additional error catching where it was missing