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.

samples/policy/serverless/diffs.json

@@ -0,0 +1,12 @@
+[
+  {
+    "findingId": "library:pkg/aws-lambda@1.0.0",
+    "status": "Blocked",
+    "rule": "block_any_high"
+  },
+  {
+    "findingId": "image:sha256:untrusted-base",
+    "status": "Blocked",
+    "rule": "forbid_unpinned_base"
+  }
+]