Fix typo of dp_id in fan platform (rospogrigio#178)

Further corrections for integration in HACS

Update manifest.json

Removed "cryptography==2.9.2" from requirements, as it is a base/core dependency already.

Fix bugs in pytuya

This handles responses without a return code and also fixes support for
unencrypted clients. Made a few tweaks to debug logs as well.

Return None if no color temp option

Add platform specific DPS to requests

Updated documentation

Update info.md

Removed unnecessary dps from covers; reduced cache timeout for covers…

… and lights

Added fan support