code: function useIconProviders(data, $element) {
          _iconProviders.forEach(function (provider) {
              var icon = provider(data);
              if (icon) {
                  $element.prepend($(icon));
              }
          });
      }
docs: /*
  To be used by other modules/default-extensions which needs to borrow working set entry icons
  @param {!object} data - contains file info {fullPath, name, isFile}
  @param {!jQuery} $element - jquery fn wrap for the list item