Major overhaul completed

* Added preferences for kWh and A-W-V Detail updates
* Reduced schedules from 3 to 2
* Updated colors
* Fixed Math.round errors
* Removed requests for L1/L2 Voltage (always reports the same as the Total - HEMv2 reads from line plug, not Clamps)
* Changed debug logging format for easier reading
* Added installed() and updated() - should eliminate manual Config & Reset requirement on installation

ToDo:
* Record L1 & L2 as state.variables and continuously monitor even when state.display == 1