binary_sensor and input_boolean should have TWO configurable icons 😊 One per state

[jlpouffier]

Today binary sensors have two different icons per state if we use one of the predefined device class (and it's already awesome)

For example, if you configure a binary_sensor to be a window:

Then its on state will have this icon:

And it's Off state will have this icon:

However if you want to use a different set of icon, let's say these two:

Then it's super complex (You basically have to create a template)

Feature idea:
Binary sensors and input boolean should have two configurable icons, one per state.

Thx a lot for your hard work!!