Allow access to call BluetoothGatt#requestConnectionPriority

[simmerz]

Thanks for building a really neat way to access BLE quickly!

I'd love to be able to change the connection priority, but can't see a way to do that using the library at the moment as the gatt handler is private.

[sureshjoshi]

Hey @simmerz that's a good idea. I've been trying to think of a clean way to expose some Android-specific functionality, while not just re-implementing the whole API.

One idea is to migrate much of the code to being utilities or extensions. That way, the entire Android stack is available, but some handy extra "stuff" is there as needed. Specifically around the connection manager, but probably at the device level too.

Need to think about it a bit more.