Resolve "Migrate from StateBlock to StateDerived"

Closes #465 (closed)

include/core/state_block/state_block.h

@@ -182,9 +182,13 @@ public:
 
         bool isTransformable() const {
             return transformable_;
-        };  
+        }
 
-        virtual void transform(const VectorComposite& _transformation) { };
+        void setTransformable(bool _trf = true) {transformable_ = _trf;}
+
+        void setNonTransformable() {transformable_ = false;}
+
+        virtual void transform(const VectorComposite& _transformation) {};
 
         void plus(const Eigen::VectorXd& _dv);