Modify MQTT Topic

[poldy42]

Good morning,
I found your project while looking to grab data from my Deye SunM60 and push it into my FHEM instance. Communication via mqtt2 works very well, thanks a lot for your work !

I am not a python specialist, so I ask for your support. Two things I would recommend to tune a little bit, to give more flexibility in implementation into other systems.

1. Option to change mqtt sending interval
   I made a change to publish_loop.py and increased the time.sleep(1) to time.sleep(6) to publish data only once a minute. Maybe you can introduce a parameter to adjust the time period

2. change MQTT "name"
   MQTT Server receives statement like "ha_services_v0.4.0_on_fhemserver:/homeassistant/sensor/inverter....."
   As I don't use HomeAssistant but FHEM, I am not sure if the is needed for HA, for FHEM (or others) it could helpful to modify this. I was able to get rid of "homeassistant/sensor/" part by modifying "publish_loop.py", but I am not sure how to change the name part "ha_services_v0.4....". Maybe it's worth to introduce also for this item a parameter in user settings to choose this by himself.

Again, great work, it is "just" beautifying he MQTT output.

Cheers - Michael