refactor: move all testing to top-level of repo

Closes https://github.com/BerriAI/litellm/issues/486

tests/local_testing/test_litellm_max_budget.py

@@ -0,0 +1,29 @@
+# #### What this tests ####
+# #    This tests calling litellm.max_budget by making back-to-back gpt-4 calls
+# # commenting out this test for circle ci, as it causes other tests to fail, since litellm.max_budget would impact other litellm imports
+# import sys, os, json
+# import traceback
+# import pytest
+
+# sys.path.insert(
+#     0, os.path.abspath("../..")
+# )  # Adds the parent directory to the system path
+# import litellm
+# # litellm.set_verbose = True
+# from litellm import completion, BudgetExceededError
+
+# def test_max_budget():
+#     try:
+#         litellm.max_budget = 0.001 # sets a max budget of $0.001
+
+#         messages = [{"role": "user", "content": "Hey, how's it going"}]
+#         response = completion(model="gpt-4", messages=messages, stream=True)
+#         for chunk in response:
+#             continue
+#         print(litellm._current_cost)
+#         completion(model="gpt-4", messages=messages, stream=True)
+#         litellm.max_budget = float('inf')
+#     except BudgetExceededError as e:
+#         pass
+#     except Exception as e:
+#         pytest.fail(f"An error occured: {str(e)}")