finish codeparser improvements

pip_cmg now works with new nested entities approach
Getters now can access to bitfields

utils/code_model_generator/common.cpp

@@ -126,3 +126,8 @@ PIString toCName(const PIString & s) {
 	ret.replaceAll("__", "_");
 	return ret;
 }
+
+
+PICodeParser::Entity * findEntity(Runtime & rt, const PIString & type) {
+	return rt.parser.findEntityByName(type);
+}