fix(Widgets3D): Add vtkRectangleWidget and vtkEllipseWidget to Widgets3D/index.js
fix(Widgets3D): Add vtkRectangleWidget and vtkEllipseWidget to Widgets3D/index.js

Kitware/vtk-js,Kitware/vtk-js,Kitware/vtk-js,Kitware/vtk-js