[Datepicker] Add slot to replace the calendar popper with a custom one

[PLDAntonySantoro]

Missing feature

Currently, when clicking on a datepicker we open a pop-up with the default calendar to select a date :

We would like to replace the default pop-up with a custom one.

What is my current use case ?

We are currently working on an app where it's a great help to visualize the date range on the calendar. We want to open to dateTable inside to visualize the selected range. Here is an example of a test :

We can still open the datepicker behind our custom pop-up :

Expectations

We expect to have a "slot" on the datepicker to replace the pop-up with a custom one.