Include networkfence and networkfenceclasses in must-gather

[black-dragon74]

This PR adds support for collecting both NetworkFence(s) and NetworkFenceClass(es) in must-gather.

This patch also moves NetworkFence resource to its appropriate category, ClusterScoped.

Regards

[black-dragon74]

/cherry-pick release-4.18

[openshift-cherrypick-robot]

@black-dragon74: once the present PR merges, I will cherry-pick it on top of release-4.18 in a new PR and assign it to you.

In response to this:

/cherry-pick release-4.18

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[openshift-cherrypick-robot]

@black-dragon74: new pull request created: #217

In response to this:

/cherry-pick release-4.18

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[openshift-ci]

@Madhu-1: changing LGTM is restricted to collaborators

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: black-dragon74, Madhu-1

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