feat(TransformControlsWidget): add new widget

[floryst]

Results

Adds a TransformControlsWidget to control translation, rotation and scaling.

Translation:

Rotation:

Scaling:

Changes

• Add vtkTorusSource
• Add three widget representations for the three control modes
• Add the vtkTransformControlsWidget
• Add vtkProp3D.setOrientationFromQuaternion
• Add typescript definitions
• Add example screenshots

PR and Code Checklist

• semantic-release commit messages
• Run npm run reformat to have correctly formatted code

Testing

• This change adds or fixes unit tests
• Tested environment:
  • vtk.js:
  • OS:
  • Browser:

[finetjul]

Please also add a screenshot/gif in the example gallery documentation

[finetjul]

Great job !

Could all 3 operations could be done all at once ?

[floryst]

Could all 3 operations could be done all at once ?

Yes, but I didn't add that functionality to reduce clutter. In particular, we'll need to adjust the handle management when supporting both translation and scaling being enabled at the same time. That can be something for future work.