Fix some nits in conformance package

[Dyanngg]

Namely:

• Renaming variables so that it fits their purposes
• Fixing some comments in admin-network-policy-core-integration.go
• Making comments more verbose in general

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[tssurya]

/assign @tssurya

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Dyanngg, tssurya

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/kubernetes-sigs/network-policy-api/blob/master/OWNERS)~~ [Dyanngg] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment