Implement paging for bookmarks in workspace

[jblom]

This will solve the problem for the MS user that reported not being able to see her bookmarks anymore. Currently it's not clear if the annotation view is also affected by the same problem (since that view loads the data per annotation type, therefore lessening amount of data transferred in one go)

• adapt labs-annotation-api bookmark endpoint with paging
• adapt workspace UI (bookmark view) to apply paging when requesting bookmarks (within a project)
• check all bookmark related functions to see if they still work properly (i.e. also check labo-components repo)

Note that this issue will only address the bookmarks view and not yet the annotations view in the workspace.