UnitFilter accepts NationFilter of the civ (e.g. "vs [England] units")

chore: Constants for "Embarked" and "Wounded"

core/src/com/unciv/Constants.kt

@@ -74,6 +74,10 @@ object Constants {
     const val barbarians = "Barbarians"
     const val spectator = "Spectator"
 
+    const val embarked = "Embarked"
+    const val wounded = "Wounded"
+
+
     const val rising = "Rising"
     const val lowering = "Lowering"
     const val remove = "Remove "