Add support for CGP23W

[Ernst Klamer]

Notes for new Qingping CGP23W sensor

Device id 0x18
Name: Qingping Temp & RH Barometer Pro
Supports: Temperature, Humidity, Pressure and Battery.

See for more info
custom-components/ble_monitor#1271

Service data example: 1816cdfd 8818072240342d5801041701ca0002016107027227

I can add it myself later, but won't be before Christmas before I have time. Just leaving my notes here as a reminder.