Add "take point for the go" to pegging phase

[joshprzybyszewski]

Right now, we can only "say go" or "peg card" during the pegging phase. When the opponent has "said go" and I want to take my point for the go, I have to push "say go" as well, and then things reset. We should implement an action on the PegAction which is "claim point for the go", which can only occur if the claimer cannot peg a remaining card.