Add a simple agents test case

llama_stack/providers/tests/agents/provider_config_example.yaml

@@ -0,0 +1,34 @@
+providers:
+  inference:
+  - provider_id: together
+    provider_type: remote::together
+    config: {}
+  - provider_id: tgi
+    provider_type: remote::tgi
+    config:
+      url: http://127.0.0.1:7001
+#   - provider_id: meta-reference
+#     provider_type: meta-reference
+#     config:
+#       model: Llama-Guard-3-1B
+#   - provider_id: remote
+#     provider_type: remote
+#     config:
+#       host: localhost
+#       port: 7010
+  safety:
+    - provider_id: together
+      provider_type: remote::together
+      config: {}
+  memory:
+    - provider_id: faiss
+      provider_type: meta-reference
+      config: {}
+  agents:
+    - provider_id: meta-reference
+      provider_type: meta-reference
+      config:
+        persistence_store:
+          namespace: null
+          type: sqlite
+          db_path: /Users/ashwin/.llama/runtime/kvstore.db