* Mark libvulkan-dev build-dependency as linux-any (closes: #911422).
Thanks to Samuel Thibault for the initial patch.
* Move all QtVulkanSupport headers to qtbase5-private-dev package.
The static library is there, so the headers should also be there.
* Sort debian/qtbase5-dev.install using wrap-and-sort.
* Make qtbase5-dev depend on libvulkan-dev on linux, as Qt headers
include Vulkan headers.
* Add a patch to pass default include directories to qdoc.
* Bump qttools build-dependency to 5.11.2-4 (to get unpatched qdoc).
* Drop Revert-QWidgetWindow-Immediately-forward-close-event.patch.
The issue was fixed in kxmlgui v5.49.0, no need to patch Qt anymore.
* Replace hidpi_scale_at_192.diff with a version that has been applied
upstream (reference_dpi.diff).
* Backport upstream patch to fix freezes when opening applications
(dont_get_screen_rotation.diff).