Hook for card added to deck

[daviscook477]

Add a hook that is triggered whenever a card is added to the deck which would allow for mods to either allow the card add to go through, stop it, replace the added card with a different card, or do other effects.

There should be two separate hooks. One will be for temporary cards added during combat and the other should be for permanent cards added to the deck outside of combat (this second option may end up being too difficult to do).