feat: add namespaces to resource.exclusions and resource.inclusions #16196

[rvandernoort]

This PR is the initial work on adding namespaces to the resource exclusion and inclusion system in order to ignore or include them in Argo. Closes #16196

One of the reasons for this functionality is ignoring specific apps that live in a specific namespace, or like some of the automatically generated resources.

However, I'm struggeling with completing this as there are some changes required in the gitops-engine which I'm not sure how to correctly implement or what the process is to get that change into this PR. Could anyone provide me with some assistance on this front?

Furthermore, I think my test suite is still incomplete. Any suggestions as to what should be included for this?

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