Add support for Ditua aroma diffuser

Issue #627

ACKNOWLEDGEMENTS.md

@@ -259,3 +259,4 @@ Further device support has been made with the assistance of users.  Please consi
 - [MiloRoNu](https://github.com/MiloRoNu) for assisting with support for Neo IR Air Conditioner controller.
 - [jaydisc](https://github.com/jaydisc) for assisting with support for Orion DL021HA BLE locks.
 - [robertrebor](https://github.com/robertreor) for assisting with support for generic Illuminance sensors.
+- [aurelmarius](https://github.com/aurelmarius) for assisting with support for Ditua DT-1522-YN aroma diffuser.

DEVICES.md

@@ -177,6 +177,7 @@
 ### Aroma diffusers
 
 - Asakuki aroma diffuser with light
+- Ditua DT-1522-YN aroma diffuser
 - Etersky aroma diffuser with light
 - YYM-805SW aroma diffuser with light (also supports GX Aroma diffuser)
 

custom_components/tuya_local/devices/ditua_dt1522yn_aromadiffuser.yaml

@@ -0,0 +1,83 @@
+name: Aroma diffuser
+products:
+  - id: 6ASdNwe9IdaewQEl
+    name: Ditua DT-1522-YN
+primary_entity:
+  entity: fan
+  icon: "mdi:scent"
+  dps:
+    - id: 1
+      type: boolean
+      name: switch
+    - id: 103
+      type: string
+      name: speed
+      mapping:
+        - dps_val: small
+          value: 50
+        - dps_val: large
+          value: 100
+secondary_entites:
+  - entity: light
+    name: LED
+    category: config
+    dps:
+      - id: 11
+        type: boolean
+        name: switch
+      - id: 108
+        type: hex
+        name: rgbhsv
+        format:
+          - name: r
+            bytes: 1
+          - name: g
+            bytes: 1
+          - name: b
+            bytes: 1
+          - name: h
+            bytes: 2
+            range:
+              min: 1
+              max: 360
+          - name: s
+            bytes: 1
+            range:
+              min: 1
+              max: 255
+          - name: v
+            bytes: 1
+            range:
+              min: 1
+              max: 255
+      - id: 109
+        type: string
+        name: color_mode
+        mapping:
+          - dps_val: white
+            value: white
+          - dps_val: colour
+            value: rgb
+          - dps_val: colourful1
+            value: Mood
+      - id: 111
+        type: integer
+        name: brightness
+        range:
+          min: 0
+          max: 255
+  - entity: select
+    name: Mood lighting
+    icon: "mdi:candelabra-fire"
+    category: config
+    dps:
+      - id: 110
+        type: string
+        name: option
+        mapping:
+          - dps_val: "1" 
+            value: "Mood 1" 
+          - dps_val: "2"
+            value: "Mood 2"
+          - dps_val: "3"
+            value: "Mood 3"