Add color to light template

[tetienne]

Proposed change

Currently, light template supports brightness and temperature. This PR adds temperature support.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example entry for configuration.yaml:

# Example configuration.yaml
input_boolean:
  foo_bool_input:

input_number:
  brightness_input:
    min: 0
    max: 255
  temperature_input:
    min: 0
    max: 500

light:
  - platform: template
    lights:
      foo:
        turn_on:
          service: input_boolean.turn_on
          entity_id: input_boolean.brightness_input
        turn_off:
          service: input_boolean.turn_off
          entity_id: input_boolean.brightness_input
        level_template: "{{states('input_number.brightness_input') | int }}"
        value_template: "{{states('input_number.brightness_input') | int > 0}}"
        set_level:
          service: input_number.set_value
          data_template:
            value: "{{ brightness }}"
            entity_id: input_number.brightness_input
        color_template: "({{states('input_number.h_input') | int}}, {{states('input_number.s_input') | int}})"
        set_color:
          - service: input_number.set_value
            data_template:
              value: "{{ h }}"
              entity_id: input_number.h_input
          - service: input_number.set_value
            data_template:
              value: "{{ s }}"
              entity_id: input_number.s_input

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request: Add color to light template home-assistant.io#11958

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• Untested files have been added to .coveragerc.

The integration reached or maintains the following Integration Quality Scale:

• No score or internal
• 🥈 Silver
• 🥇 Gold
• 🏆 Platinum

[probot-home-assistant]

Hey there @PhracturedBlue, mind taking a look at this pull request as its been labeled with a integration (template) you are listed as a codeowner for? Thanks!

[balloob]

🎉 Nice!

Thanks for splitting it up in parts, really helped.

[tetienne]

You are welcome :)