Rotation variant for axis widget

Here is a MR to add 2 new widget to Daiquiri.

Features

The integrated knob widget provides the following features

• Allow to move the motor by dragging the knob
• The dragging can be aborted with right click (to cancel the move request)
• Multi rotation are available
• Snapping (every 45deg)
  • When the mouse is close to the scales
  • When CTRL is pressed
• During motor move
  • The widget is disabled
  • The target of the motor is displayed

Changelog

• Introduce an highly modified version of rc-knob
  • For now as github pinpoint, but this could be merged in a project as a lib
  • I prefer a pinpoint for now as it is not yet stabilized
• Added generic InfiniteKnob360 from rc-knob to design common use cases and style
• Added a basic MotorRotation with just a knob for rotation axis
• Added a custom MotorTomoRotation for specialized tomo use case (this will be improved later)
• Added MotorMock to have interactive widget in the documentation
• Update MotorDefault and MotorSmall documentation to use MotorMock