feat: Improved error handling

[hpohekar]

closes #3634

Check whether provided ip and port are valid.

# Incorrect ip and port
>>> import ansys.fluent.core as pf
>>> s = pf.connect_to_fluent(ip="1.2.3.4", port=5555)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "D:\pyfluent\src\ansys\fluent\core\launcher\launcher.py", line 361, in connect_to_fluent
    _check_ip_port_2(ip=ip, port=port)
  File "D:\pyfluent\src\ansys\fluent\core\launcher\launcher.py", line 92, in _check_ip_port_2
    raise exceptions.IncorrectIpPortProvided()
ansys.fluent.core.launcher.error_handler.IncorrectIpPortProvided: Provide correct 'ip' and 'port'.