Make ScriptContext available in Actor- and PlayerProperty classes

Needed to return non-native types to Lua

OpenRA.Mods.RA/Scripting/Properties/GeneralProperties.cs

@@ -21,7 +21,8 @@ namespace OpenRA.Mods.RA.Scripting
 		readonly IFacing facing;
 		readonly AutoTarget autotarget;
 
-		public GeneralProperties(Actor self) : base(self)
+		public GeneralProperties(ScriptContext context, Actor self)
+			: base(context, self)
 		{
 			facing = self.TraitOrDefault<IFacing>();
 			autotarget = self.TraitOrDefault<AutoTarget>();
@@ -135,4 +136,4 @@ namespace OpenRA.Mods.RA.Scripting
 			return self.HasScriptProperty(name);
 		}
 	}
-}
+}