Use DeviceWatcher to track Nuimos instead of looking for Nuimos once

[hansmbakker]

In a "real" app you wouldn't look for Nuimos only during startup (using ListPairedNuimosAsync()). Instead you would need to keep watching the Nuimos and connect them when they become available.

I created an example in https://github.com/wind-rider/nuimo-windows/tree/deviceWatcher.

It doesn't work properly yet so I didn't make a pull request yet.

I hope you can continue here or give feedback how you think it should be done.

[larsblumberg]

Thanks for your example – as soon as we've got time we'll have a look into it.