OpenAPI Responses - move tests under tests/verifications

This moves the OpenAI Responses API tests under
tests/verifications/openai_api/test_response.py and starts to wire
them up to our verification suite, so that we can test multiple
providers as well as OpenAI directly for the Responses API.

Signed-off-by: Ben Browning <bbrownin@redhat.com>

tests/verifications/openai_api/conftest.py

@@ -0,0 +1,35 @@
+# 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.
+
+from tests.verifications.openai_api.fixtures.fixtures import _load_all_verification_configs
+
+
+def pytest_generate_tests(metafunc):
+    """Dynamically parametrize tests based on the selected provider and config."""
+    if "model" in metafunc.fixturenames:
+        provider = metafunc.config.getoption("provider")
+        if not provider:
+            print("Warning: --provider not specified. Skipping model parametrization.")
+            metafunc.parametrize("model", [])
+            return
+
+        try:
+            config_data = _load_all_verification_configs()
+        except (FileNotFoundError, IOError) as e:
+            print(f"ERROR loading verification configs: {e}")
+            config_data = {"providers": {}}
+
+        provider_config = config_data.get("providers", {}).get(provider)
+        if provider_config:
+            models = provider_config.get("models", [])
+            if models:
+                metafunc.parametrize("model", models)
+            else:
+                print(f"Warning: No models found for provider '{provider}' in config.")
+                metafunc.parametrize("model", [])  # Parametrize empty if no models found
+        else:
+            print(f"Warning: Provider '{provider}' not found in config. No models parametrized.")
+            metafunc.parametrize("model", [])  # Parametrize empty if provider not found