- Minor refactor of "transforms" ability

- Updated changeling and transforms to only get creature types (as initially intended by the code), removed hardcoded list of "types to avoid"

The test suite passes

projects/mtg/include/Subtypes.h

@@ -47,6 +47,7 @@ public:
     bool isType(int type);
     bool isSubType(int type);
     int add(string value, int parentType);
+    const vector<string> getValuesById();
 };
 
 #endif