[question] get next Friday

Is there a way to get the next given day after a date? For e.g. I want to find when will be the next Friday after 04/16/2018.

I know in Java you can do something like this:

```java
LocalDate.now().with(TemporalAdjusters.next(DayOfWeek.FRIDAY));
```

Is this possible with this plugin? If not, I am happy to help adding this feature and open a pr. 👍