refactor(architecture): centralize bloc files into dedicated folder

lib/bloc/login_bloc.dart

@@ -0,0 +1,18 @@
+import 'dart:async';
+import '../product/base/bloc/base_bloc.dart';
+
+class LoginBloc extends BlocBase{
+  
+  final loginRequest = StreamController<Map<String,dynamic>>.broadcast();
+  StreamSink<Map<String,dynamic>> get sinkLoginRequest => loginRequest.sink;
+  Stream<Map<String,dynamic>> get streamLoginRequest => loginRequest.stream;
+  
+  final isShowPassword = StreamController<bool>.broadcast();
+  StreamSink<bool> get sinkIsShowPassword => isShowPassword.sink;
+  Stream<bool> get streamIsShowPassword => isShowPassword.stream;
+
+  @override
+  void dispose() {
+  }
+
+}