Method removeItem

UnitTests/UnitTest_GraphView/BaseGraphView.h:51–62

		}

		void removeItem(BaseGraphNode* _node)
		{
			VectorGraphNode::iterator item = std::find(mNodes.begin(), mNodes.end(), _node);
			MYGUI_ASSERT(item != mNodes.end(), "Item not found");

			removeAllConnections(_node);
			_node->_shutdown();

			mNodes.erase(item);

			changePosition(nullptr);
		}

		void removeAllItems()
		{