Added LiteLLM to the stack

Development/litellm/tests/local_testing/test_configs/test_config.yaml

@@ -0,0 +1,28 @@
+general_settings:
+  database_url: os.environ/DATABASE_URL
+  master_key: os.environ/PROXY_MASTER_KEY
+litellm_settings:
+  drop_params: true
+  success_callback: ["langfuse"]
+  
+model_list:
+- litellm_params:
+    api_base: https://my-endpoint-europe-berri-992.openai.azure.com/
+    api_key: os.environ/AZURE_EUROPE_API_KEY
+    model: azure/gpt-35-turbo
+  model_name: azure-model
+- litellm_params:
+    api_base: https://my-endpoint-canada-berri992.openai.azure.com
+    api_key: os.environ/AZURE_CANADA_API_KEY
+    model: azure/gpt-35-turbo
+  model_name: azure-model
+- litellm_params:
+    api_base: https://openai-france-1234.openai.azure.com
+    api_key: os.environ/AZURE_FRANCE_API_KEY
+    model: azure/gpt-turbo
+  model_name: azure-model
+- litellm_params:
+    model: gpt-3.5-turbo
+  model_info:
+    description: this is a test openai model
+  model_name: test_openai_models