implemented new loadable state concept

lib/state/app/infrastructure/repository/repository.dart

@@ -0,0 +1,13 @@
+import '../dataLoader/data_loader.dart';
+
+abstract class Repository {
+  final List<DataLoader> dataLoaders;
+
+  Repository(this.dataLoaders);
+
+  Future<void> load() async {
+    dataLoaders.forEach((element) {
+      element.fetch();
+    });
+  }
+}