* add support for Hykker Smart Plug with power meter
Type: Power Plugs
Board: Hykker Power Plug
Build flag: HYKKER_POWER_PLUG
Description: Power plug w/ power metering

* Update arduino.h

hykker power plug

* Update platformio.ini

hykker power plug

* Type: Power Plugs
Board: Hykker Smart Home Power Plug
Build flag: HYKKER_SMART_HOME_POWER_PLUG
Description: Power plug w/ power metering

* voltage ratio calibration for correct results