Have a canonical name for devices.

[erick-xanadu]

Devices have a short name, long name, and sometimes might even be different from their short name and long name. Right now depending on the implementation details, the qdevice_p primitive binds different versions of the name. For some, it is the short name, for others it is the long name. For others it might be different (see SUPPORTED_RT_DEVICES in runtime.py). Can we have a single canonical name?