Added support to HTW HTWD020A4 Dehumidifier (#4076)

* Added support to HTW HTWD020A4

* fix (htw_htwd020a4_dehumidifier): update config to 2025 format

- use current config format
- use translations

PR #4076

---------

Co-authored-by: rsbelo <r@live.com>
Co-authored-by: Jason Rumney <make-all@users.noreply.github.com>

custom_components/tuya_local/devices/htw_htwd020a4_dehumidifier.yaml

@@ -0,0 +1,151 @@
+name: Dehumidifier
+products:
+  - id: z6iig4fopkrzyej9
+    manufacturer: HTW
+    model: HTWD020A4
+
+entities:
+  - entity: humidifier
+    class: dehumidifier
+    dps:
+      - id: 1
+        type: boolean
+        name: switch
+      - id: 4
+        type: integer
+        name: humidity
+        range:
+          min: 25
+          max: 90
+        mapping:
+          - step: 5
+      - id: 3
+        type: integer
+        name: current_humidity
+      - id: 2
+        type: string
+        name: mode
+        mapping:
+          - dps_val: "1"
+            value: normal
+          - dps_val: "2"
+            value: laundry
+          - dps_val: "3"
+            value: sleep
+          - dps_val: "4"
+            value: purify
+  - entity: fan
+    translation_key: fan_with_presets
+    dps:
+      - id: 1
+        type: boolean
+        name: switch
+      - id: 6
+        type: string
+        name: preset_mode
+        mapping:
+          - dps_val: "1"
+            value: high
+          - dps_val: "2"
+            value: low
+      - id: 8
+        type: boolean
+        name: oscillate
+
+  - entity: binary_sensor
+    class: problem
+    category: diagnostic
+    dps:
+      - id: 11
+        type: bitfield
+        name: sensor
+        mapping:
+          - dps_val: 0
+            value: false
+          - dps_val: 2
+            value: false
+          - value: true
+      - id: 11
+        type: bitfield
+        name: fault_code
+      - id: 11
+        type: bitfield
+        name: description
+        mapping:
+          - dps_val: 0
+            value: "OK"
+          - dps_val: 1
+            value: "Sensor Fault"
+          - dps_val: 2
+            value: "Tank Full"
+          - dps_val: 4
+            value: "Pump Fault"
+  - entity: binary_sensor
+    translation_key: tank_full
+    dps:
+      - id: 11
+        type: bitfield
+        name: sensor
+        mapping:
+          - dps_val: 2
+            value: true
+          - value: false
+  - entity: sensor
+    class: temperature
+    dps:
+      - id: 110
+        type: integer
+        name: sensor
+        unit: "C"
+
+  - entity: lock
+    translation_key: child_lock
+    category: config
+    dps:
+      - id: 16
+        type: boolean
+        name: lock
+
+  - entity: switch
+    translation_key: ionizer
+    category: config
+    dps:
+      - id: 10
+        type: boolean
+        name: switch
+
+  - entity: button
+    translation_key: filter_reset
+    category: config
+    dps:
+      - id: 20
+        type: boolean
+        name: button
+
+  - entity: binary_sensor
+    translation_key: defrost
+    category: diagnostic
+    dps:
+      - id: 108
+        type: boolean
+        name: sensor
+
+  - entity: number
+    translation_key: timer
+    dps:
+      - id: 106
+        type: integer
+        name: value
+        range:
+          min: 0
+          max: 24
+        unit: h
+
+  - entity: sensor
+    translation_key: time_remaining
+    class: duration
+    dps:
+      - id: 18
+        type: integer
+        name: sensor
+        unit: min