Start to display user groups

lib/helpers/groups_helper.dart

@@ -1,6 +1,7 @@
 import 'package:comunic/lists/groups_list.dart';
 import 'package:comunic/models/api_request.dart';
 import 'package:comunic/models/group.dart';
+import 'package:comunic/utils/api_utils.dart';
 
 /// Groups helper
 ///
@@ -91,11 +92,20 @@ class GroupsHelper {
     return list;
   }
 
+  /// Get the list of groups of a user
+  Future<Set<int>> getListUser() async =>
+      (await APIRequest(uri: "groups/get_my_list", needLogin: true).exec())
+          .assertOk()
+          .getArray()
+          .map((f) => cast<int>(f))
+          .toSet();
+
   /// Turn an API entry into a group object
   Group _getGroupFromAPI(Map<String, dynamic> map) {
     return Group(
         id: map["id"],
         name: map["name"],
+        iconURL: map["icon_url"],
         numberMembers: map["number_members"],
         membershipLevel: _APIGroupsMembershipLevelsMap[map["membership"]],
         visibilityLevel: _APIGroupsVisibilityLevelsMap[map["visibility"]],