Add docs for ESERA 1-Wire (virtual) integration (#26535)

source/_integrations/esera_onewire.markdown

@@ -0,0 +1,23 @@
+---
+title: ESERA 1-Wire
+description: Instructions on how to integrate ESERA 1-Wire sensors into Home Assistant.
+ha_category:
+  - DIY
+ha_domain: esera_onewire
+ha_integration_type: virtual
+ha_supporting_domain: onewire
+ha_supporting_integration: 1-Wire
+ha_release: 0.12
+ha_codeowners:
+  - '@garbled1'
+  - '@epenet'
+ha_config_flow: true
+ha_platforms:
+  - binary_sensor
+  - diagnostics
+  - sensor
+  - switch
+ha_iot_class: Local Polling
+---
+
+{% include integrations/supported_brand.md %}