Add Air Purifier Pro H support (#1185)

Author: pvizeli

README.rst

@@ -103,7 +103,7 @@ Supported devices
 -  Xiaomi Mi Robot Vacuum V1, S4, S4 MAX, S5, S5 MAX, S6 Pure, M1S, S7
 -  Xiaomi Mi Home Air Conditioner Companion
 -  Xiaomi Mi Smart Air Conditioner A (xiaomi.aircondition.mc1, mc2, mc4, mc5)
--  Xiaomi Mi Air Purifier 2, 3H, 3C, Pro (zhimi.airpurifier.m2, mb3, mb4, v7)
+-  Xiaomi Mi Air Purifier 2, 3H, 3C, Pro, Pro H (zhimi.airpurifier.m2, mb3, mb4, v7, vb2)
 -  Xiaomi Mi Air (Purifier) Dog X3, X5, X7SM (airdog.airpurifier.x3, airdog.airpurifier.x5, airdog.airpurifier.x7sm)
 -  Xiaomi Mi Air Humidifier
 -  Xiaomi Aqara Camera

miio/discovery.py

@@ -140,6 +140,7 @@
     "zhimi-airpurifier-mc1": AirPurifier,  # mc1
     "zhimi-airpurifier-mb3": AirPurifierMiot,  # mb3 (3/3H)
     "zhimi-airpurifier-ma4": AirPurifierMiot,  # ma4 (3)
+    "zhimi-airpurifier-vb2": AirPurifierMiot,  # vb2 (Pro H)
     "chuangmi-camera-ipc009": ChuangmiCamera,
     "chuangmi-camera-ipc019": ChuangmiCamera,
     "chuangmi-ir-v2": ChuangmiIr,