Kyverno docs

Package Merge Request

Package Changes

Adding Kyverno to documentation.

Preview Architecture: https://repo1.dso.mil/platform-one/big-bang/bigbang/-/blob/kyverno-docs/charter/packages/kyverno/Architecture.md

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/1129

charter/BigBangPackages.md

@@ -151,7 +151,26 @@ Owners:
 
 ### Policy Enforcement
 
-The Policy Enforcement Package installs Kyverno.
+The Policy Enforcement Package installs either the Open Policy Agent Gatekeeper [Operator](https://kubernetes.io/docs/concepts/extend-kubernetes/operator/) or Kyverno.
+
+#### OPA Gatekeeper
+
+Product:
+
+* [OPA Gatekeeper](https://github.com/open-policy-agent/gatekeeper)
+* [Open Policy Agent](https://www.openpolicyagent.org/)
+
+Repository:
+
+* [Policy Repo](https://repo1.dso.mil/platform-one/big-bang/apps/core/policy)
+
+Dependencies: None
+
+Owners:
+
+* [CODEOWNERS](https://repo1.dso.mil/platform-one/big-bang/apps/core/policy/-/blob/main/CODEOWNERS)
+
+#### Kyverno
 
 Product: