Add dmaker.fan.p45 support

[aaastafyev]

Please add device support. This is a new model and it is becoming very popular.

[biscuitee]

Yes, i am also using dmaker.fan.p45 tower fan. Appreciate if it can be supported soon. Currently i added it as dmaker.fan.p9 and it can only control the on/off toggle, while the speed control are not working. Appreciate if dmaker.fan.p45 can be officially supported.