Set pending state on policies if dependencies are not met + remove template

[willkutler]

Adds logic to determine whether a policy template should be pending based on whether its dependencies are satisfied. If a template should be pending, these changes will remove it from the managed cluster and set the status of the parent policy to Pending.

https://github.com/stolostron/backlog/issues/26188
https://github.com/stolostron/backlog/issues/26189

[JustinKuli]

Looking good overall! I have a lot of somewhat optional comments, and only one that I think actually would require a change: whether we can use allDeps, or whether we need a tmplDeps variable.

[JustinKuli]

I think if in the future we have (or support a 3rd party) policy type that is cluster-scoped, we would want to guard this so that we only set the namespace when it's one of our known types. But I don't know if that would even cause those types problems, so it's definitely not necessary to make any changes right now.

[JustinKuli]

/hold

Looks good to me! Just holding to squash the commits (which helped in review, so thanks for keeping them like that), and I think it will be good to go.

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JustinKuli, willkutler

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[willkutler]

/unhold

commits have been squashed and the message has been updated, this PR should be good to go now