[pickers] Allow to render more than 3 range calendars in column view in modal

[abriginets]

Summary

Currently DateRangePicker can only display up to 3 calendars in a row, which is a pity since there are great UI examples of how more than 3 calendars could be displayed in a column view. Take a look at the examples section.

Examples

Mobile version of https://wayaway.io/

Screenshot

Mobile version of https://www.skyscanner.net/

Screenshot

Mobile version of https://www.kayak.com/flights

Screenshot

Mobile version of https://www.momondo.com/

Screenshot

And most importantly mobile version of Google Flights, can be taken as a reference

Screenshot

Motivation

Better user experience with calendars in mobile environment, especially in travel domain.

Search keywords: daterange more than 3