Add KUrlRequester::nameFilters, deprecate KUrlRequester::filter (KF6)
For consistency with QFileDialog API and better naming given there are 2 kinds of filters supported, by name and by MIME type.
Using deprecation wrapping instead of simple API deprecation macro to enable check of no hidden deps and allow simple removal once up. See teams/frameworks-devs/kf6-workboard#45 (comment 700748) for some related discussion proposal.
KF5-variant: !1319 (merged)
Edited by Friedrich W. H. Kossebau