Add enabled setting for template entity options

[TheFes]

Integration name

Template

Link to integration documentation on our website

https://www.home-assistant.io/integrations/template

Describe the enhancement

Add an enabled setting for all optional template options which can have the values true or false and allows templates.
This will allow to create more versatile template blueprints.

Use cases

As an example I have created blueprints for template lights. This allows me to set a min and max brightness and/or color temperature and I added some effects so all my lights have the same.
However, I have some lights with only brightness, others with color temperature and also som rgb and rgbww lights. I now had to create separate template lights for these types.

The same applies to the combined weather blueprint I created, not all integrations provide twice daily forecast, so if the user doesn't have any integrations which don't, I don't want to provide a forecast for that.

Anything else?

Thanks in advance ;)

[github-actions[bot]]

🏷️ I've automatically added the integration: template label to help categorize this feature request.