Add support for throttling and debouncing

Related to #5

When updating the display, it may be interesting to not update the display for all object updates.
Implementing a debouncing or throttling would improve the responsiveness of some Pipelines in conjunction with threaded updates.

Start by reading related issue #5 and the repository description to understand the displayable manager architecture and threaded update context. Determine whether throttling or debouncing is appropriate for display updates, and define completion by demonstrating improved responsiveness without processing every object update.

Written by the indexing model from the issue text.