message: add locale to MuiPickersUtilsProviderProps
diff: @@ -5,6 +5,7 @@ import { Utils } from '../typings/utils';
  export interface MuiPickersUtilsProviderProps {
  utils: Utils;
  children: ReactNode;
  + locale: (any | string);
  }
  declare const MuiPickersUtilsProvider: ComponentClass<MuiPickersUtilsProviderProps>;
  