Integration name change

[eriknn]

For obvious reasons, this integration shouldn't be called what it is today. However, "modbus" is kind of already taken. Any suggestions for a better name? I think this should be done as soon as possible, as this will be a totally breaking change and require re-configuration of all devices :/

Having a final name for the integration would allow us to add icons to the integration, so I guess that's a motivational factor :)