1.28.0

• Variables catalogs are now loaded lazily, which means some dataset operations will be much faster. You can override this behavior (useful for eg testing or rare situations when working on many datasets at once by using forceVariableCatalog() or option(crunch.lazy.variable.catalog = FALSE)).
• You can now set the filter, weight and viz_type of a slide when creating it.
• searchDatasets() gained an argument f that allows you to pass R objects to filter on.
• Added a vignette for common deck operations.

(Release much earlier but not put on GitHub as a release)