Port the pagination classes from bot and sir-lancebot #178
Description
We currently have almost identical definitions of the LinePaginator class in both bot and sir-lancebot.
These classes can be ported over to bot-core and make them available for both of theses bots, and potentially any other one as part of the effort suggested in #85
Suggestion
@mbaruh has suggested to make use of views and buttons for the paginator and move away from reactions.