[VEG v2.34] REQ: Implement + Weapon powers

[raelik]

Love the framework, BTW. I'm playing a revenant hexblade, and I've already added some very helpful customizations to help me keep track of the '+x bonus against target until the end of your next turn' abilities she has. But there's one area that I haven't figured out how to work out: the hexblade's implement + weapon powers. Basically, they have melee weapon powers that also add the bonuses from an implement. Currently, I've just set the power as weapon based, and can add the implement attack and damage bonuses on the attack dialog, but this doesn't account for any bonus critical dice.