Update parley implementation

[micahstairs]

1) When choosing a card to dogma, you may parley to choose a card on a distant player's board. Use its featured icon, but only count icons on your own board.

2) If you are eligible to share during a distant player's Dogma Action, you may parley when you're about to execute a shared effect for the first time. If you parley, you're eligible to share for the whole action. If you don't, you're not eligible for the whole action. 

3) If you are vulnerable to demands (or [ARTIFACTS] compels) from a distant player's Dogma Action, you may parley when you're about to be forced to execute the demand. If you parley, you're no longer vulnerable. If you don't, you remain vulnerable as normal. 

If applicable, you may parley for each of steps 2 and 3.