Added messaging functions

extensions.py

@@ -0,0 +1,10 @@
+from flask_socketio import SocketIO
+from flask_sqlalchemy import SQLAlchemy
+from flask_login import LoginManager
+from flask_wtf.csrf import CSRFProtect
+
+# Initialize extensions
+db = SQLAlchemy()
+login_manager = LoginManager()
+csrf = CSRFProtect()
+socketio = SocketIO(cors_allowed_origins="*")