listProjects(cb) {
      return this._requestAllPages(`/orgs/${this.__name}/projects`, {AcceptHeader: 'inertia-preview'}, cb);
   }
Get information about all projects
@see https://developer.github.com/v3/projects/#list-organization-projects
@param {Requestable.callback} [cb] - will receive the list of projects
@return {Promise} - the promise for the http request