message: feat: pass through onSelectionStart in GraphView.
diff: @@ -51,6 +51,8 @@ const GraphView = ({
  onNodeMouseLeave,
  onNodeContextMenu,
  onSelectionContextMenu,
  + onSelectionStart,
  + onSelectionEnd,
  connectionLineType,
  connectionLineStyle,
  connectionLineComponent,
  @@ -112,6 +114,8 @@ const GraphView = ({
  deleteKeyCode={deleteKeyCode}
  selectionKeyCode={selectionKeyCode}
  selectBoxOnDrag={selectBoxOnDrag}
  + onSelectionStart={onSelectionStart}
  + onSelectionEnd={onSelectionEnd}
  multiSelectionKeyCode={multiSelectionKeyCode}
  zoomActivationKeyCode={zoomActivationKeyCode}
  elementsSelectable={elementsSelectable}
  