Allow users to add their custom color wheel on YAML config

[xaviml]

Feature Request

Is your feature request related to a problem?

Limitation on choosing a custom color wheel.

Describe the solution / feature you'd like

As of now, ControllerX allows users to use hold_color_up and hold_color_down to change the color of the light. This goes over a color wheel that is preset on the Python code. The colors match with the external wheel from the Home Assistant light card:

This feature request proposes to change this in a manner that the current wheel will be the default color wheel, but users will be able to change this color wheel in their YAML configuration.

[xaviml]

Related to this, I could create preset color wheels:

• Color wheel (the one we currently have)
• Color temperature wheel. XY color can be calculated from color temperature. This a lookup table for reference.

This way users will be able to choose a preset color wheel or using their own color wheel.

[xaviml]

This is shipped on ControllerX v3.0.0