feat(electriq_airflex15w_heatpump): add entities for unknown dps

Based on same dps layout, temperature range and fan speed matches, this and Duux North
seem to be based on the same firmware. Assume unknown dps will match the assignments
from issue #5140, and add problem, sleep, timer entities and swing_mode control for
climate entity.
Unfortunately a mismatch of hvac_modes (Duux North does not support heating, despite
being listed in the dps info) and no model identifier means these configs could
not be merged into one.

custom_components/tuya_local/devices/electriq_airflex15w_heatpump.yaml

@@ -53,9 +53,6 @@ entities:
         range:
           min: 0
           max: 100
-      - id: 20
-        type: integer
-        name: unknown_20
       - id: 101
         type: string
         # at least some firmware versions of this model do not like combining
@@ -72,9 +69,6 @@ entities:
             value: Dry
           - dps_val: "5"
             value: Fan
-      - id: 103
-        type: boolean
-        name: unknown_103
       - id: 104
         type: string
         name: fan_mode
@@ -85,12 +79,14 @@ entities:
             value: medium
           - dps_val: "1"
             value: high
-      - id: 105
-        type: integer
-        name: unknown_105
       - id: 106
         type: boolean
-        name: unknown_106
+        name: swing_mode
+        mapping:
+          - dps_val: false
+            value: "off"
+          - dps_val: true
+            value: "on"
       - id: 109
         type: boolean
         name: temperature_unit
@@ -135,3 +131,36 @@ entities:
             value: celsius
           - dps_val: true
             value: fahrenheit
+  - entity: binary_sensor
+    class: problem
+    category: diagnostic
+    dps:
+      - id: 20
+        type: bitfield
+        name: sensor
+        mapping:
+          - dps_val: 0
+            value: false
+          - value: true
+      - id: 20
+        type: bitfield
+        name: fault_code
+  - entity: switch
+    translation_key: sleep
+    dps:
+      - id: 103
+        type: boolean
+        name: switch
+  - entity: number
+    translation_key: timer
+    class: duration
+    category: config
+    dps:
+      - id: 105
+        type: integer
+        name: value
+        unit: h
+        range:
+          min: 0
+          max: 24
+