Add support to Nova Digital TS0601_TZE204_unsxl4ir

[bernardesarthur]

It's my first contribution, I apologize if I did something wrong.

This device is equal to Tuya 4 Gangs with backlight and neutral, it's actually a whitelabel.

Thx!

[Koenkk]

Thanks!

Could you also submit a picture for the docs? This can be done by:

1. Create a fork by clicking here
2. Go to the public/images/devices directory, Add file -> Upload files
3. Upload the files and press Commit changes
4. Press Contribute -> Open pull request -> update title/description -> Create pull request

Make sure that:

• The filename is FZB-4.png
• The size is 512x512
• The background is transparent (use e.g. Adobe remove background)