More progress on Curse Of Mantras (Patreon)

Obviously the card "Steam" couldn't be missing from the game! :P

Making good progress, I've also added some new functions to the core system, mostly related to the new armor mechanic (this card uses it for example).

The cards in your hand auto-hide when you pick one, not sure if I'll keep that. Also the GUI at the bottom might be too big, I'll probably reduce it (knowing the mana left is important but also seeing the cards!!).