Add support for Arlec FAN ATF4601HA (#4621)
* Add support for Arlec FAN ATF4601HA
An older version of the Arlec smartfan, 4 speed, oscilation,
temperature, natural flow
* Update based on feedback
* removed category references
* Updated the Product ID
* fix (arlec_atf4601ha_fan): restore categories to timer related entities
- rename file to follow the brand_model_type pattern used by 90% of the configs.
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Co-authored-by: Wouter van Bommel <woutervb@woutervb.net>
Co-authored-by: Jason Rumney <make-all@users.noreply.github.com>