Scroll to between days in the resources scroll mode

[anton-patrushev]

Problem:

Right now in the enableResourceScroll={true} mode the scrolling is locked by a single active day and enforces user to stay within that day.

Request:

We need to be able to scroll and snap to the next day even in the enableResourceScroll={true} mode.
So when resourcePerPage is provided, we should be able to scroll internal day through resources horizontally, but once we get to the edge and proceed with scrolling — it should snap to the next/prev day.

Context:

Originally this was requested to be raised and implemented in scope of the next issue:

• Scroll calendar horizontally when there are too much resources #146

But we need to enhance it.

cc: @howljs