Correct netutil.py unit tests

[konstantinos-papadopoulos]

test_netutil.py calls ssh_connect* methods having the named tuple as an argument. Unit tests should be updated with ip, username, password, port. See i.e methods

def ssh_connection_open(ip, ssh_port, username, password):

and

def test01_ssh_connection_open(self):

in test_netutil.py. Testing of

• test_file.py
• test_netutil.py
• test_html.py
• test_sysstats.py
• test_process.py

removed temporarily from tracis ci. Do not forget to restore it after correcting the unit test