Add a wildcard option for volumes contained in AcceptedPods for Rules 2003 and 2008

[georgibaltiev]

What this PR does / why we need it:
This PR contains a modification to the acceptedResources handling in Rules 2003 and 2008 of the Security Hardened Kubernetes Ruleset by adding the option to accept all volumes in an accepted pod by using a wildcard.

Which issue(s) this PR fixes:
Fixes #407

Special notes for your reviewer:

Release note:

Accepted volume names for rules 2003 and 2008 of the Security Hardened Kubernetes Ruleset can be generalized by using a wildcard in the configuration.

[dimityrmirchev]

Please also add the proper example in the sample configuration file

[georgibaltiev]

I will push the guide change to #406 to avoid merge conflicts later on.

[dimityrmirchev]

I am not sure what you mean. I mean having the new wildcard value shown here

On a similar note I think that we should also do the same changes for rule 2008. WDYT?

[georgibaltiev]

I assumed that you meant the guide configuration that will be used by the stakeholders. I agree that 2008 could benefit from the same mechanism, so I will add the changes to that rule too.

[dimityrmirchev]

Thank you!

/lgtm