Zigbee integration

[RomansP]

Please test

Code:

local zb = require('applibs.zigbee')

local ieee = 'f4ce36e12b9esa24'

local res, err = zb.cmdsync('getnamedattributes', ieee, 'HaElectricalMeasurement', {'RmsVoltage'})
log(res)
log(err)

local res_2, err_2 = zb.cmdsync('getrawattribute', ieee, 0xFEE7, 0x0010)
log(res_2)
log(err_2)