Add support to programmatically change active page for Pagination

[tomisykora]

Is your feature request related to a problem? Please describe. Not related to any problem but could be a usefull featuer. There are cases where users needs to programmatically change the active page number, eg. when searching, the page should change to first page. I have already a merge request prepared.

Describe the solution you'd like Add support to programmatically change active page for Pagination.