Add support to ESPHome core to disable components

[marcelveldt]

Component definitions in the yaml should be able to have a "enabled" key, allowing users to temporary disable components.

Acceptance criteria:

• A disabled component is not validated
• A disabled component is not compiled/loaded

[jesserockz]

I added frontmatter parsing to ESPHome in # maybe we can use that?

---
disabled_ids:
  - webserver_1
---

esphome:
  ...