Adding long term, short term, entity and contextual memory

src/crewai/memory/storage/interface.py

@@ -0,0 +1,11 @@
+from typing import Any, Dict
+
+
+class Storage:
+    """Abstract base class defining the storage interface"""
+
+    def save(self, key: str, value: Any, metadata: Dict[str, Any]) -> None:
+        pass
+
+    def search(self, key: str) -> Dict[str, Any]:
+        pass