* Update speed fan and REST API docs with speed_level
* Update fan docs
* Add configurable speed_levels to speed fan
* Update components/fan/index.rst
Co-authored-by: Guillermo Ruffino <glm.net@gmail.com>
* Changed speed_levels to speed_count to match HA and updated descriptions
Co-authored-by: Guillermo Ruffino <glm.net@gmail.com>