[deckbuilder] Set (edition) filters

[drekonja]

I wonder if it would be possible to somehow implement the filter for certain sets, so it would be much easier to filter out cards which are not in that set. Mainly because mixing cards from all editions which are here lead to some sick combos, like goblins: first turn lackey, second turn lackey štih, gang bang v igro, fetching dual lands and other things which make some cards and strategies obsolete. Too bad that jatill made a mess here, taking cards here and there, so there are not much cards from certain set or block. But still I'd like to try to make some custom T2 and Extended formats. So no more 8 swords of plowshares and some use of shock, a good spell, but outclassed by lighting bolt.