add search fragment

lib/bloc/scoop_search_state.dart

@@ -0,0 +1,30 @@
+part of 'scoop_search_bloc.dart';
+
+abstract class ScoopSearchState extends Equatable {
+  const ScoopSearchState();
+
+  @override
+  List<Object> get props => [];
+}
+
+class ScoopSearchInitial extends ScoopSearchState {}
+
+class ScoopSearchLoading extends ScoopSearchState {}
+
+class ScoopSearchLoaded extends ScoopSearchState {
+  final Map<String, List<ScoopAppModel>> apps;
+
+  const ScoopSearchLoaded(this.apps);
+
+  @override
+  List<Object> get props => [apps];
+}
+
+class ScoopSearchError extends ScoopSearchState {
+  final String message;
+
+  const ScoopSearchError(this.message);
+
+  @override
+  List<Object> get props => [message];
+}