Update to using Quirks V2 API. Support for Bosh Room Thermostat II 230v

1. Bosch Room Thermostat II 230V: RBSH-RTH0-ZB-EU
 - exposes thermostat attributes: operating mode, window open, boost,
   pi heating demand
 - exposes user interface attributes: display on-time, display brightness

2. Bosch Radiator Thermostat II: RBSH-TRV0-ZB-EU
 - exposes thermostat attributes: operating mode, window open, boost,
   pi heating demand, remote temperature
 - exposes user interface  attributes: display orientation,
   display on-time, display brightness, displayed temperature
 - fixes HVAC mode setting and reporting by linking system mode attribute
   to the operating mode attribute

TBD: All attributes are exposed to the HA UI with zha ready available
strings which might not match their intended purpose. To be determined why
the Quirks V2 API support implementation in ZHA doesn't fallback to using
the attribute name when no or unknown translation key is provided.

Author: mrrstux

zhaquirks/bosch/rbsh_rth0_zb_eu.py

@@ -0,0 +1,142 @@
+        """Device handler for Bosch RBSH-RTH0-ZB-EU thermostat."""
+
+from typing import Any, Final
+
+from zigpy.device import Device
+from zigpy.profiles import zha
+from zigpy.quirks import CustomCluster
+from zigpy.quirks.registry import DeviceRegistry
+from zigpy.quirks.v2 import (
+    CustomDeviceV2,
+    add_to_registry_v2,
+)
+from zigpy.quirks.v2.homeassistant.number import NumberDeviceClass
+import zigpy.types as t
+from zigpy.zcl import ClusterType
+from zigpy.zcl.clusters.hvac import Thermostat, UserInterface
+from zigpy.zcl.foundation import BaseAttributeDefs, ZCLAttributeDef, ZCLCommandDef
+
+"""Bosch specific thermostat attribute ids."""
+OPERATING_MODE_ATTR_ID = 0x4007
+VALVE_POSITION_ATTR_ID = 0x4020
+WINDOW_OPEN_ATTR_ID = 0x4042
+BOOST_ATTR_ID = 0x4043
+
+"""Bosch specific user interface attribute ids."""
+SCREEN_TIMEOUT_ATTR_ID = 0x403a
+SCREEN_BRIGHTNESS_ATTR_ID = 0x403b
+
+"""Bosh operating mode attribute values."""
+class BoschOperatingMode(t.enum8):
+    Schedule = 0x00
+    Manual = 0x01
+    Pause = 0x05
+
+"""Bosch thermostat preset."""
+class BoschPreset(t.enum8):
+    Normal = 0x00
+    Boost = 0x01
+
+"""Binary attribute (window open) value."""
+class State(t.enum8):
+    Off = 0x00
+    On = 0x01
+
+class BoschThermostatCluster(CustomCluster, Thermostat):
+    """Bosch thermostat cluster."""
+
+    class AttributeDefs(Thermostat.AttributeDefs):
+        operating_mode = ZCLAttributeDef(
+            id=t.uint16_t(OPERATING_MODE_ATTR_ID),
+            type=BoschOperatingMode,
+            is_manufacturer_specific=True,
+        )
+
+        pi_heating_demand = ZCLAttributeDef(
+            id=t.uint16_t(VALVE_POSITION_ATTR_ID),
+            # Values range from 0-100
+            type=t.enum8,
+            is_manufacturer_specific=True,
+        )
+
+        window_open = ZCLAttributeDef(
+            id=t.uint16_t(WINDOW_OPEN_ATTR_ID),
+            type=State,
+            is_manufacturer_specific=True,
+        )
+
+        boost = ZCLAttributeDef(
+            id=t.uint16_t(BOOST_ATTR_ID),
+            type=BoschPreset,
+            is_manufacturer_specific=True,
+        )
+
+
+class BoschUserInterfaceCluster(CustomCluster, UserInterface):
+    """Bosch UserInterface cluster."""
+
+    class AttributeDefs(UserInterface.AttributeDefs):
+        display_ontime = ZCLAttributeDef(
+            id=t.uint16_t(SCREEN_TIMEOUT_ATTR_ID),
+            # Usable values range from 5-30
+            type=t.enum8,
+            is_manufacturer_specific=True,
+        )
+
+        display_brightness = ZCLAttributeDef(
+            id=t.uint16_t(SCREEN_BRIGHTNESS_ATTR_ID),
+            # Values range from 0-10
+            type=t.enum8,
+            is_manufacturer_specific=True,
+        )
+
+
+class BoschThermostat(CustomDeviceV2):
+    """Bosch thermostat custom device."""
+
+(
+    add_to_registry_v2(
+        "Bosch", "RBSH-RTH0-ZB-EU"
+    )
+    .device_class(BoschThermostat)
+    .replaces(BoschThermostatCluster)
+    .replaces(BoschUserInterfaceCluster)
+    # Operating mode: controlled automatically through Thermostat.system_mode (HAVC mode).
+    .enum(
+        BoschThermostatCluster.AttributeDefs.operating_mode.name,
+        BoschOperatingMode,
+        BoschThermostatCluster.cluster_id,
+        translation_key="switch_mode"
+    )
+    # Preset - normal/boost.
+    .enum(
+        BoschThermostatCluster.AttributeDefs.boost.name,
+        BoschPreset,
+        BoschThermostatCluster.cluster_id,
+        translation_key="preset"
+    )
+    # Window open switch: manually set or through an automation.
+    .switch(
+        BoschThermostatCluster.AttributeDefs.window_open.name,
+        BoschThermostatCluster.cluster_id,
+        translation_key="window_detection"
+    )
+    # Display time-out
+    .number(
+        BoschUserInterfaceCluster.AttributeDefs.display_ontime.name,
+        BoschUserInterfaceCluster.cluster_id,
+        min_value=5,
+        max_value=30,
+        step=1,
+        translation_key="on_off_transition_time"
+    )
+    # Display brightness
+    .number(
+        BoschUserInterfaceCluster.AttributeDefs.display_brightness.name,
+        BoschUserInterfaceCluster.cluster_id,
+        min_value=0,
+        max_value=10,
+        step=1,
+        translation_key="backlight_mode"
+    )
+)