🎉 Add BSEED Echo Click 4-gang (#157)

SWITCH_BSEED_TS0726_4GANG
`_TZ3002_pzao9ls1`
Thanks @audrius-u

Author: andrei-lazarov

device_db.yaml

@@ -3236,19 +3236,20 @@ SWITCH_BSEED_TS0726_4GANG:
   stock_converter_manufacturer: Tuya
   stock_converter_model: TS0726_4_gang_scene_switch
   override_z2m_device: EC-GL86ZPCS41
-  tuya_module: null
-  mcu_family: null
-  mcu: null
-  config_str: pzao9ls1;TS0726-4-BS;  null
+  tuya_module: ZTU
+  mcu_family: Telink
+  mcu: TLSR8258
+  config_str: pzao9ls1;BS4;LC1;SD3u;RA0;ID2;SD7u;RA1;IB4;SD4u;RC2;IB5;SB6u;RC3;IC4;M;
   alt_config_str: null
   old_manufacturer_names: null
-  old_zb_models: null
-  stock_manufacturer_id: null
-  stock_image_type: null
+  old_zb_models: 
+  - TS0726-4-BS
+  stock_manufacturer_id: 4417
+  stock_image_type: 54179
   firmware_image_type: 43627
-  build: no
-  status: in_progress
-  info: Needs pinout
+  build: yes
+  status: fully_supported
+  info: Supported
   threads: https://github.com/romasku/tuya-zigbee-switch/issues/157
   store:
   - https://www.aliexpress.com/item/1005008635350349.html