Add Loot timeout

[TheTechromancer]

SMTP looter can run forever

[ERRR] Traceback (most recent call last):
  File "/usr/local/lib/python3.9/dist-packages/trevorspray/lib/looters/msol.py", line 62, in test_smtp
    session = smtplib.SMTP(host, timeout=5)
  File "/usr/lib/python3.9/smtplib.py", line 253, in __init__
    (code, msg) = self.connect(host, port)
  File "/usr/lib/python3.9/smtplib.py", line 339, in connect
    self.sock = self._get_socket(host, port, self.timeout)
  File "/usr/lib/python3.9/smtplib.py", line 310, in _get_socket
    return socket.create_connection((host, port), timeout,
  File "/usr/lib/python3.9/socket.py", line 843, in create_connection
    raise err
  File "/usr/lib/python3.9/socket.py", line 831, in create_connection
    sock.connect(sa)
socket.timeout: timed out