Allow to filter games by Amount of Wins Required

From reddit:
"
With all the great options and filters we have on xmage, it's weird that the amount of wins is not one of them.

Some players (for whatever reason) choose to set the amount of wins for a game to just 1 and that doesn't make sense to most people.

I know you can see this requirement from the games list, but with so much information it's hard to look for that specific setting when choosing a game.
"