First day of the week

[anasbud]

Hi,

Little suggestion : it would be nice to have an input to change the first day of the week.

By default, it's Sunday, in Europe we mostly use Monday as first day. So I guess a boolean should be fine as well in this scenario.

Thank you for the high quality of this lib !

[nzbin]

  constructor(private dateAdapter: DateAdapter<Date>){}

  ngOnInit() {
    this.dateAdapter.getFirstDayOfWeek = () => 1;
  }