Return advertised services when scanning

Advertised data has the option to include service UUIDS.

These would be great to get back in discovered peripheral. These are different from the service ids queried when connected, so should be in a different attribute

Hey @mikkeldamsgaard, thanks for the suggestion! Will add it to the to-do list.

Implemented in https://github.com/OpenBluetoothToolbox/SimpleBLE/pull/130