New zigbee device handler for EMI Han Meter

[tore.dahl]

Hi @johnconstantelo
This is working great.

I am not sure how often I get update, but it seems to be very often. It seems to updated multiple times within 30 sec.

[tor.arve.thorsen]

Is the code written her earlier workign for the device? Looking out to get one my self to integrate into smartthings.

[tore.dahl]

Yes, it is working.