Disable insecure warning when explicit --nochkcert option given

[billdodd]

For the case of running against a system that uses a self-signed cert, several tools have an option (like --nochkcert) to disable the certificate validation. But when you use that option, you will see the following warning displayed:

InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised.

If you've explicitly used the --nochkcert option, the warning is just an annoyance. Suggest we disable that warning during arg processing if --nochkcert is specified.

Code to do this:

import requests
from requests.packages.urllib3.exceptions import InsecureRequestWarning

    ...
    requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
    ...

Applies to some other tools as well, including Redfish-Service-Validator, Redfish-Interop-Validator and Redfish-Usecase-Checkers/one_time_boot.

Idea came from Paul Vancil who did this in Redfish tool.

[tomasg2012]

Yeah, I've noticed this but it happens differently on certain versions of requests or python, it seems when I see this on a more recent library, it repeats it constantly, which produces a lot of log spam. On the version I'm developing with, it only prints once...

Thanks for the code, I saw a similar question online but with a lot of odd dispute that I never returned to reading about.

[mraineri]

Fixed in latest PR