Make experiment.device_components() output more readable

[jyu00]

What is the expected enhancement?

Today provider.experiment.device_components() just returns a list of dictionary. Each entry in the dictionary has the format of {'backend_name': 'ibmq_athens', 'type': 'Q0', 'uuid': '...'}. This output can be difficult to understand when the number of components is large. A better format could be
{'backend_name': 'ibmq_athens', 'qubits': ['Q0', 'Q1', ....], 'resonators': ['R0', 'R1', ...]}