add pytest option to generate a functional report for distribution (#833)

# What does this PR do?

add pytest option (`--report`) to support generating a functional report
for llama stack distribution

## Test Plan
```
export LLAMA_STACK_CONFIG=./llama_stack/templates/fireworks/run.yaml
/opt/miniconda3/envs/stack/bin/pytest -s -v tests/client-sdk/  --report
```

See a report file was generated under
`./llama_stack/templates/fireworks/report.md`


## Sources

Please link relevant resources if necessary.


## Before submitting

- [ ] This PR fixes a typo or improves the docs (you can dismiss the
other checks if that's the case).
- [ ] Ran pre-commit to handle lint / formatting issues.
- [ ] Read the [contributor
guideline](https://github.com/meta-llama/llama-stack/blob/main/CONTRIBUTING.md),
      Pull Request section?
- [ ] Updated relevant documentation.
- [ ] Wrote necessary unit or integration tests.

tests/client-sdk/metadata.py

@@ -0,0 +1,50 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+
+INFERENCE_API_CAPA_TEST_MAP = {
+    "chat_completion": {
+        "streaming": [
+            "test_text_chat_completion_streaming",
+            "test_image_chat_completion_streaming",
+        ],
+        "non_streaming": [
+            "test_image_chat_completion_non_streaming",
+            "test_text_chat_completion_non_streaming",
+        ],
+        "tool_calling": [
+            "test_text_chat_completion_with_tool_calling_and_streaming",
+            "test_text_chat_completion_with_tool_calling_and_non_streaming",
+        ],
+    },
+    "completion": {
+        "streaming": ["test_text_completion_streaming"],
+        "non_streaming": ["test_text_completion_non_streaming"],
+        "structured_output": ["test_text_completion_structured_output"],
+    },
+}
+
+MEMORY_API_TEST_MAP = {
+    "/insert, /query": {
+        "inline": ["test_memory_bank_insert_inline_and_query"],
+        "url": ["test_memory_bank_insert_from_url_and_query"],
+    }
+}
+
+AGENTS_API_TEST_MAP = {
+    "create_agent_turn": {
+        "rag": ["test_rag_agent"],
+        "custom_tool": ["test_custom_tool"],
+        "code_execution": ["test_code_execution"],
+    }
+}
+
+
+API_MAPS = {
+    "inference": INFERENCE_API_CAPA_TEST_MAP,
+    "memory": MEMORY_API_TEST_MAP,
+    "agents": AGENTS_API_TEST_MAP,
+}