so far only "simple" pagination is supported by wuttaweb, so basically
the main feature flag, page size, current page. in this
scenario *all* data is written to client-side JSON and Buefy handles
the actual pagination.
backend pagination coming soon for wuttaweb but for now tailbone still
handles all that.
this starts to get things more aligned between wuttaweb and tailbone.
the use case in mind so far is for a wuttaweb view to be included in a
tailbone app.
form and grid classes now have some new methods to match wuttaweb, so
templates call the shared method names where possible.
templates can no longer assume they have tailbone-native master view,
form, grid etc. so must inspect context more closely in some cases.
