Add support for binary sensor (digital input) in Home Assistant discovery

[Xinayder]

This change was motivated by a door/window sensor from Tuya, where I had to manually publish the discovery payload for the sensor (after converting to OpenBK) otherwise HASS would report the sensor as unavailable after a reboot or integration reload.

I had to change get_Relay_PWM_Count, and I found out it is also used by a Tasmota-related function, but that remains to be done as I have no idea how it would work to report or configure a binary sensor for Tasmota.

[openshwprojects]

Seems like a great change, from a brief glance at code it seems ok but @iprak knows more about discovery.

@iprak , can you please take a look at this pull request and tell me if I can merge it?

[iprak]

That looks great.

[openshwprojects]

It seems that BL602 and W800 fails to build

[iprak]

@Xinayder I think the build failures are due to hass_init_binary_sensor_device_info missing in the header file (hass.h). Although I am not sure why build for other chips succeeded.

[Xinayder]

I just submitted a commit to fix these build issues.

The hass_init_binary_sensor_device_info function was inside the #ifndef OBK_DISABLE_ALL_DRIVERS block, so it failed for one specific chip. Some functions were also missing from their associated header files, now it should work.

Although I tried building for OpenXR809 and after fixing all these issues, the build seems to fail for some unrelated problems.

EDIT: might want to squash these commits when merging

[openshwprojects]

Thank you!

[github-actions]

🎉 This PR is included in version 1.15.292 🎉

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