createProjectColumn(options, cb) {
      return this._request('POST', `/projects/${this.__id}/columns`, options, cb);
   }
Create a new column
@see https://developer.github.com/v3/projects/columns/#create-a-project-column
@param {Object} options - the description of the column
@param {Requestable.callback} cb - will receive the newly created column
@return {Promise} - the promise for the http request