Move the sharers to seperate packages

[MaxArt2501]

The sharers weren't meant to be a core part of the library, but rather ready-made examples of its usage.

On the other hand, they have been used like part of the library and became part of CI pipelines, causing issues like #37 when one has been removed.

For the next major release, remove the sharers from the library and move them in their separate packages.