Add more support for tests from VSCode.

Author: HexDecimal

.vscode/settings.json

@@ -305,5 +305,8 @@
         "xvfb",
         "ydst",
         "yrel"
-    ]
+    ],
+    "python.testing.pytestArgs": [],
+    "python.testing.unittestEnabled": false,
+    "python.testing.pytestEnabled": true
 }