-Fixes to OBJ importer, option to disable optimization

-Fixes to script language, PlaceHolder can now get and check methods

scene/animation/root_motion_view.h

@@ -13,6 +13,7 @@ public:
 	bool use_in_game;
 	Color color;
 	bool first;
+	bool zero_y;
 
 	Transform accumulated;
 
@@ -33,6 +34,9 @@ public:
 	void set_radius(float p_radius);
 	float get_radius() const;
 
+	void set_zero_y(bool p_zero_y);
+	bool get_zero_y() const;
+
 	virtual AABB get_aabb() const;
 	virtual PoolVector<Face3> get_faces(uint32_t p_usage_flags) const;