fixed bug with special card swap check in repentance

- fixed mod freaking out if no hud offset is found
- fixed positioning of card sprite being weird on repentance
- fixed bug that can happen if you lose and recollect the printer during a run

added true co-op compatibility

-added global function that other mods can call and added a console command to call the function

fixed bug where if you had 2 active item cards and used one the second card could sometimes change to the same type as the one that was just used when moving from slot 2 to slot 1

fixed bug where you could sometimes get a card with active item ID -1 which would crash the game on use

added check so active item cards can be spawned by things other than card printer and duplication (e.g. jera) without breaking everything (code to spawn active item card at top of main.lua)

-fixed 'more pickup variety' mod replacing the card sprites
-fixed bug where you could trigger the printer while out of range of any items and it would basically just wait until you walked near one and then trigger, now if there's no active nearby it resets, no more delayed converting
-fixed bug where picking up a second active card could sometimes overwrite the first one making it the same item as the second

fixed bug where cards could sometimes lose their item ID number