Implement proper endpoint parsing

[jean-airoldie]

This is a tracking issue around the proper implementation of Endpoint.

Currently Endpoint only parses the transport and stores the address into a string without parsing. This is meant to future-proof our socket methods until proper parsing is developed.

These are the sub-issues to must be closed:

• Implement TcpAddr Implement TcpAddr parsing #6
• Implement IpcAddr Implement IpcAddr parsing #7
• Implement InprocAddr Implement InprocAddr parsing #8
• Implement PgmAddr Implement PgmAddr parsing #9
• Implement EpgmAddr Implement EpgmAddr parsing #10