move test options configuration to tests root

otherwise `pytest --ignore-cassettes tests` doesn't work

Author: chekunkov

tests/conftest.py

@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+
+
+def pytest_addoption(parser):
+    parser.addoption(
+        "--update-cassettes", action="store_true", default=False,
+        help="test with real services rewriting existing vcr cassettes")
+    parser.addoption(
+        "--ignore-cassettes", action="store_true", default=False,
+        help="test with real services skipping existing vcr cassettes")

tests/hubstorage/conftest.py

@@ -47,15 +47,6 @@ def deserialize(self, cassette_string):
 my_vcr.serializer = 'gz'
 
 
-def pytest_addoption(parser):
-    parser.addoption(
-        "--update-cassettes", action="store_true", default=False,
-        help="test with real services rewriting existing vcr cassettes")
-    parser.addoption(
-        "--ignore-cassettes", action="store_true", default=False,
-        help="test with real services skipping existing vcr cassettes")
-
-
 def pytest_configure(config):
     if config.option.update_cassettes:
         # there's vcr `all` mode to update cassettes but it doesn't delete