OSD-23312: Refactor GetRestConfig() to allow passing an ocm connection programatically

[typeid]

What type of PR is this?

cleanup

What this PR does / Why we need it?

CAD needs to use the GetRestConfig() function, but it doesn't allow passing an ocmConnection programatically.
To not refactor the whole ocm package/usage, I dupliacted the functions to allow passing and initializing on the fly.

Which Jira/Github issue(s) does this PR fix?

Special notes for your reviewer

Pre-checks (if applicable)

• Ran unit tests locally
• Validated the changes in a cluster
• Included documentation changes with PR

[openshift-ci-robot]

@typeid: This pull request references OSD-23312 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.16.0" version, but no target version was set.

In response to this:

What type of PR is this?

cleanup

What this PR does / Why we need it?

CAD needs to use the GetRestConfig() function, but it doesn't allow passing an ocmConnection programatically.
To not refactor the whole ocm package/usage, I dupliacted the functions to allow passing and initializing on the fly.

Which Jira/Github issue(s) does this PR fix?

Special notes for your reviewer

Pre-checks (if applicable)

• Ran unit tests locally
• Validated the changes in a cluster
• Included documentation changes with PR

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[openshift-ci]

@typeid: all tests passed!

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[mjlshen]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mjlshen, typeid

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