Simulation - Contact Sensor/Leak Sensor
* **Please explain your feature request in a one or two sentences.**

Simulation between a contact sensor and a leak sensor 

* **Is your feature request related to a problem? Please describe.**

I made a rain sensor through a contact sensor. When the sensor is in the closed state, the system should consider it as a leak detected.  Like this: https://youtu.be/YFu2LZfrrqs?t=196


* **Any particular eWeLink devices that this relates to?**

DW2-Wi-Fi Door Window Sensor - https://sonoff.tech/product/wifi-smart-home-security/dw2

* **Anything else?**


