zigbee2mqtt topic support

[cova-fe]

Hi all, I'm using Zigbee2mqtt with topics; not being able to use this automation out of the box I had to tweak the code to look for topic messages.
Apparently it works in my setup (ikeaE2001/2002, E1812 and E1524/E1810). I'm not sure it this is the right approach (I'm also looking at mqtt events approach), but if someone is interested you can see the code here:

https://github.com/cova-fe/awesome-ha-blueprints/tree/z2mtopic

If it is the right approach, I may open a PR to this repo.