Gwent morale boost cards

Morale boost gwent cards adds +1 strength to all units in that row, excluding themselves.

Icon	Name	Type	Combat row	Strength	Source	Deck
File:Tw3 gwent unit card back siege.png	Kaedweni Siege Expert	Unit	Siege	1	Northern Realms	Northern Realms
File:Tw3 gwent unit card back agile.png	Isengrim Faoiltiarna	Hero	Close combat	10ities.	during A Dangerous Game, looted from Zed's house	Scoia'tael
File:Tw3 gwent unit card back ranged.png	Milva	Unit	Ranged combat	10	during A Matter of Life and Death, win a match at the masquerade ball at the Vegelbud Estate	Scoia'tael
File:Tw3 gwent unit card back ranged.png	Kayran	Unit	Ranged combat	8	Random, from playing a craftsman or merchant	Monsters