Tokenize ruleset keys. Remove MotionName.

Assets/Cryville/Crtr/PropOp.cs

@@ -45,6 +45,13 @@ namespace Cryville.Crtr {
 				_cb(GetOperand(0).AsString());
 			}
 		}
+		public class Identifier : PropOp {
+			readonly Action<int> _cb;
+			public Identifier(Action<int> cb) { _cb = cb; }
+			protected override void Execute() {
+				_cb(GetOperand(0).AsIdentifier());
+			}
+		}
 		public class Enum<T> : PropOp {
 			readonly static Dictionary<int, int> _cache = new Dictionary<int, int>();
 			readonly Action<T> _cb;