Detect supported platform.

[iBobik]

Is your feature request related to a problem? Please describe. Our app could be used on old or strange devices without camera or supported API. It his situations app should hide reader feature.

Describe the solution you'd like I would like to use method like isSupported(): boolean. This should not trigger permission dialog.

Describe alternatives you've considered I could dive into APIs behind this plugin and try to check it for every platform, but I am not sure how difficult it will be and if I will cover it correctly.

[thegnuu]

I am not sure if isSupported is the right term in this case. Maybe it would make sense to somehow implement something like getCameras and even allow the devs to set a specific camera if required.

But I need to check if this is even possible if you have no permission, not sure about this to be honest...