Add net_info table to GUI

[JeremyDrysdale-ibm]

From @priti-ashvin-shah-ibm

What is the feature being requested?

The net_info table is at

design._qnet.net_info

This keeps track of which components are connected within QDesign. It may be helpful to have this be in the GUI.

What are use cases for this feature?

Enhanced functionality

[priti-ashvin-shah-ibm]

Also, allow users to sort the pandas table through the GUI.

[priti-ashvin-shah-ibm]

https://github.com/Qiskit/qiskit-metal/pull/837

This was being worked on, but not completed yet. Developer's focus has been changed.