kitinerary-workbench/kitinerary-workbench: add 9999

[gerion0]

The whole ebuild is oriented on kde-misc/itinerary (copied and adapted).

I'm not entirely sure about the dependencies. I took them out of the CMakelists.txt but have a full KDE desktop installed, so I might miss something.

Also, the package builds and runs fine against the released versions of kpkpass and kitinerary (24.02.1 in my case) but the PVCUT variable forces portage to install the 9999 versions of these packages. Since I took the ebuild of kde-misc/itinerary and it shows the same behavior I guess that's intented but unfortunate personally (I try to reduce git packages).

Closes: https://bugs.gentoo.org/849098