refactor(architecture): centralize bloc files into dedicated folder

lib/bloc/bell_bloc.dart

@@ -0,0 +1,22 @@
+import 'dart:async';
+
+import '../product/base/bloc/base_bloc.dart';
+import '../feature/bell/bell_model.dart';
+
+class BellBloc extends BlocBase {
+
+  final bellItems = StreamController<List<BellItems>>.broadcast();
+  StreamSink<List<BellItems>> get sinkBellItems => bellItems.sink;
+  Stream<List<BellItems>> get streamBellItems => bellItems.stream;
+
+  final isLoading = StreamController<bool>.broadcast();
+  StreamSink<bool> get sinkIsLoading => isLoading.sink;
+  Stream<bool> get streamIsLoading => isLoading.stream;
+
+  final hasMore = StreamController<bool>.broadcast();
+  StreamSink<bool> get sinkHasMore => hasMore.sink;
+  Stream<bool> get streamHasMore => hasMore.stream;
+
+  @override
+  void dispose() {}
+}