Initial standalone memabra release

tests/test_router_protocol.py

@@ -0,0 +1,12 @@
+from memabra.router import (
+    FeatureScoringRouter,
+    RouterProtocol,
+    RuleBasedRouter,
+    SimpleLearningRouter,
+)
+
+
+def test_all_router_implementations_conform_to_router_protocol():
+    assert isinstance(RuleBasedRouter(), RouterProtocol)
+    assert isinstance(FeatureScoringRouter(), RouterProtocol)
+    assert isinstance(SimpleLearningRouter(), RouterProtocol)