create kustomizations for every policy group

[xyhhx]

Related Issue(s)

N/A

Description

Provide the policy groups as kustomizations, like the pod security ones already are for example.

I opted to also add jsonSchema comments for yaml-language-server users, too

Checklist

• [] I have read the policy contribution guidelines.
• [] I have added test manifests and resources covering both positive and negative tests that prove this policy works as intended.
• [] I have added the artifacthub-pkg.yml file and have verified it is complete and correct.