Improvement: pause and resume methods

[alexeylepesin]

Can you add pause and resume methods?
So that after the pause method call the scroller does not work at all, it does not react in any way to user actions and API calls.
After the resume method is called, everything should resume.

[illuusio]

Please make PR so I can see and others how it should function.

[alexeylepesin]

Hello.
In my application it is necessary that when the sidebar is expanded, page scrolling will pause.
It would be nice to pause the page scrolling.
https://jsfiddle.net/rh1qtuey/8/

Pull Request
81806ab