Add Air Purifier 4 and Air Purifier 4 Lite

[jedziemyjedziemy]

Add Xiaomi Air Purifier 4 and Xiaomi Air Purifier 4 Lite. I set up WIP because python-miio on github already has these two devices, but on pypi it has not been updated yet.

Fix #275

[RafZie]

is it possible to add also Xiaomi Smart Air Purifier 4 Pro (zhimi.airp.vb4)?

[redding1]

+1 for zhimi.airp.vb4
rytilahti/python-miio#1324
rytilahti/python-miio#1399

[Sapd]

zhimi.airp.mb5a also (Air Purifier 4)

[Semihal]

@syssi hi! can you add pull request?

[syssi]

@jedziemyjedziemy thanks for your contribution! Is this pull request complete and well tested?

[gabriellferreira]

Hey folks, if you want help for testing on zhimi.airp.mb5 just let me know and help me with some instructions :)

[MrFox131]

Rename PR please. There is no support for Xiaomi Smart Air Purifier 4, just for pro an lite.
Pro with id zhimi.airp.mb5a is not supported here
@syssi @jedziemyjedziemy

[IATkachenko]

Is any updates for this PR?

2023-04-21 09:36:08.191 ERROR (MainThread) [custom_components.xiaomi_miio_airpurifier.fan] Unsupported device found! Please create an issue at https://github.com/syssi/xiaomi_airpurifier/issues and provide the following data: zhimi.airp.rmb1

Three other Xiaomi integrations in HA is allow to add this purifier, but does not allow control fan speed via favorite_level.

[adriannowak]

My device has deerma.humidifier.jsq2w that is not supported even with this PR. Can we add it?

[Kaan88]

I just tested this pr with my air purifier4 pro and it works.

[caniko]

Why isn't this merged?