This PR migrates the functionality of hound.py in faculty_cli.
The majority of the hound.py functions have been replicated in the new serveragent.py client. A new function _stream has also been added to the Base client for streaming Sever Sent Event messages.
This PR migrates the functionality of hound.py in faculty_cli. The majority of the hound.py functions have been replicated in the new serveragent.py client. A new function _stream has also been added to the Base client for streaming Sever Sent Event messages.