Implement Pagination widget

[ldjebran]

https://www.patternfly.org/pattern-library/navigation/pagination/

This pagination widget is more and more needed for our airgun framework, we are creating a solution of this widget in airgun SatelliteQE/airgun#292 but a more general solution should be implemented here.

[digitronik]

@ldjebran as per me; In WT we are trying to address widgets not a combination of widgets (views). Yup paginator is part of the table as per pfy widget you pointed but we can add a view in a local project (airgun already implemented 👍 ) or wt.pfy; which can combine table and paginator.

In this view, you can add more facilities like surf_page for the pertular entity in the table and return the object, etc... I would give the first choice to local project widget collection, not in wt.pfy. It's my personal view.

[mshriver]

https://github.com/RedHatQE/widgetastic.patternfly4/blob/master/src/widgetastic_patternfly4/pagination.py#L18

This has been implemented within wt.pf4, and there is likely a large overlap between the BasePagination class for pf4 and the pf3 pagination implementation.

If a class is implemented here, it should be utilized in wt.pf4 for BasePagination to avoid repeating the implementation.