Changed import package_info to package_info_plus

Author: nilsreichardt

templates/flutter/lib/client.dart.twig

@@ -6,7 +6,7 @@ import 'package:dio/adapter.dart';
 import 'package:dio_cookie_manager/dio_cookie_manager.dart';
 import 'package:cookie_jar/cookie_jar.dart';
 import 'package:path_provider/path_provider.dart';
-import 'package:package_info/package_info.dart';
+import 'package:package_info_plus/package_info_plus.dart';
 
 import 'enums.dart';
 
@@ -142,4 +142,4 @@ class Client {
             return http.request(path, data: params, options: options);
         }
     }
-}
+}