SceneGraph: deinline Object constructor.

Might save some generated code.

src/SceneGraph/Object.h

@@ -117,9 +117,7 @@ template<class Transformation> class MAGNUM_SCENEGRAPH_EXPORT Object: public Abs
          * @brief Constructor
          * @param parent    Parent object
          */
-        explicit Object(Object<Transformation>* parent = nullptr): counter(0xFFFFu), flags(Flag::Dirty) {
-            setParent(parent);
-        }
+        explicit Object(Object<Transformation>* parent = nullptr);
 
         /**
          * @brief Destructor

src/SceneGraph/Object.hpp

@@ -43,6 +43,10 @@ template<UnsignedInt dimensions, class T> AbstractObject<dimensions, T>::~Abstra
 
 template<UnsignedInt dimensions, class T> AbstractTransformation<dimensions, T>::AbstractTransformation() {}
 
+template<class Transformation> Object<Transformation>::Object(Object<Transformation>* parent): counter(0xFFFFu), flags(Flag::Dirty) {
+    setParent(parent);
+}
+
 template<class Transformation> Object<Transformation>::~Object() = default;
 
 template<class Transformation> Scene<Transformation>* Object<Transformation>::scene() {