tests : add some simple code to run a few tests

tests/runners.py

@@ -0,0 +1,8 @@
+# Copyright (C) 2026 Paul Retourné
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from unisync.synchroniser import Synchroniser
+from unisync.paths import PathsManager
+
+def unisync_test(synchroniser:Synchroniser, paths_manager:PathsManager):
+    print("Testing")