Ensure that if given local port is already in use,
rather than stopping installation, the script asks
if the user would like to overwrite or no the currently
rule using the local port.
Test Plan:
PASS: User press y to override the rule
PASS: User press n or any other key to ignore the creation
of a port forwarding rule and continue installation
Story: 2005051
Task: 48091
Change-Id: Iaabf0d5b713cf6d73a9fccdcf7da6962ac5620c2
Signed-off-by: Daniel Caires <daniel.caires@encora.com>