Add keytable dao

src/main.py

@@ -38,7 +38,7 @@ def get_active_tables():
     cursor = db.cursor()
     tables = game_tables.read_active(cursor)
     cursor.close()
- 
+
     return jsonify([table.toJson() for table in tables])
 
 
@@ -47,7 +47,7 @@ def get_tables():
     db = get_db()
     cursor = db.cursor()
     tables = game_tables.read_all(cursor)
-    cursor.close();
+    cursor.close()
 
     return jsonify([table.toJson() for table in tables])