Add Policy DSL Validator, Schema Exporter, and Simulation Smoke tools

- Implemented PolicyDslValidator with command-line options for strict mode and JSON output.
- Created PolicySchemaExporter to generate JSON schemas for policy-related models.
- Developed PolicySimulationSmoke tool to validate policy simulations against expected outcomes.
- Added project files and necessary dependencies for each tool.
- Ensured proper error handling and usage instructions across tools.

docs/examples/policies/serverless.yaml

@@ -0,0 +1,30 @@
+version: "1.0"
+metadata:
+  description: Strict policy for serverless workloads
+  tags:
+    - serverless
+    - prod
+    - strict
+rules:
+  - name: Block High And Above
+    severity: [High, Critical]
+    action: block
+
+  - name: Forbid Unpinned Base Images
+    tags: [image:latest-tag]
+    action: block
+
+  - name: Require Trusted VEX
+    action:
+      type: require_vex
+      requireVex:
+        vendors: [VendorX, VendorY]
+        justifications: [component_not_present]
+
+  - name: Quiet Medium Canary
+    severity: [Medium]
+    environments: [canary]
+    action:
+      type: ignore
+      until: 2025-12-31T00:00:00Z
+      justification: "Temporary canary exception"