General code clean up.
sensor.solax_rtc now formated as datetime (still disabled by default)
Set the following to disabled by default:
Gen2, Gen3 & Gen4
- sensor.solax_bms_connect_state
Gen 2 & Gen3
- sensor.solax_charger_start_time_1
- sensor.solax_charger_end_time_1
- sensor.solax_charger_start_time_2
- sensor.solax_charger_end_time_2
Gen3
- sensor.solax_backup_charge_end
- sensor.solax_backup_charge_start
- sensor.solax_backup_gridcharge