Motor widget: Option for header instead of variant

I would like to use bar widget (without header state).

One idea would be to add more variant for each components.

But we could also use the default variant widget with more options.

I propose to

• Create an optional header in options field
• To update the MotorDefault with it
• Actual motor variant can stay for compatibility, it is not a huge cost
• Then update at least the ShutterDefault with it

This way could be a bit more easier to manage, and variant could be reserved for bigger advanced changes.

I am also pretty sure this different layouts for the header can be mutualized.

Header top

Which is also the default (if no header field is specified)

- type: component
  component: hardware
  ids:
     - id: omega
       options:
          header: top

Header front

- type: component
  component: hardware
  ids:
     - id: omega
       options:
          header: front

Header none

- type: component
  component: hardware
  ids:
     - id: omega
       options:
          header: none