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/baseline.yaml

@@ -0,0 +1,34 @@
+version: "1.0"
+metadata:
+  description: Baseline production policy
+  tags:
+    - baseline
+    - production
+rules:
+  - name: Block Critical
+    severity: [Critical]
+    action: block
+
+  - name: Escalate High Internet
+    severity: [High]
+    environments: [internet]
+    action:
+      type: escalate
+      escalate:
+        minimumSeverity: Critical
+
+  - name: Require VEX justification
+    sources: [NVD, GHSA]
+    action:
+      type: requireVex
+      requireVex:
+        vendors: [VendorX, VendorY]
+        justifications:
+          - component_not_present
+          - vulnerable_code_not_present
+
+  - name: Alert warn EOL runtime
+    priority: 1
+    severity: [Low, Medium]
+    tags: [runtime:eol]
+    action: warn