ODC-7771: Expose topology components and utils via plugin SDK internal package

[vojtechszocs]

This is a backport of #14705 for 4.18 release branch.

This PR also includes the relevant bits of #14768 to ensure 4.18 release branch docs are up to date.

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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[openshift-ci-robot]

@vojtechszocs: This pull request references ODC-7771 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 "4.18.0" version, but no target version was set.

In response to this:

This is a backport of #14705 for 4.18 release branch.

This PR also includes the relevant bits of #14768 to ensure 4.18 release branch docs are up to date.

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[openshift-ci]

@vojtechszocs: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/analyze	a61d321	link	true	/test analyze

Full PR test history. Your PR dashboard.

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