Submit .Values.additionalPolicyExceptions as an upstream patch

Background

• Jasdeep added .Values.additionalPolicyExceptions as a template to our chart a year ago: https://repo1.dso.mil/big-bang/product/packages/kyverno-policies/-/blob/main/chart/templates/additional-policyexceptions.yaml
• @jasdeep.s.basra and I have some warm preapproval from the #kyverno slack to submit this as an upstream patch
• Moving this upstream would help us to simplify things if/when we move to a passthrough chart