talkatu/talkatu

Update the pkg-config, gir, and vapi targets for gtk4
gtk4
2022-01-30, Gary Kramlich
5ab22d444b62
Update the pkg-config, gir, and vapi targets for gtk4

Testing Done:
ran `meson --wipe` and verified no immediate issues.

Reviewed at https://reviews.imfreedom.org/r/1257/
syntax: glob
*.pyc
*.ui~
\#*.ui\#
syntax: regexp
^artifacts\/
^build.*\/
^debian\/?
^fedora\/?
^packaging\/debian\/tmp\/
^packaging\/debian\/(.+\.)?(substvars|debhelper\.log)$
^packaging\/debian\/build.*\/
^packaging\/debian\/\.debhelper\/
^packaging\/debian\/debhelper-build-stamp
^packaging\/debian\/gir1.2-talkatu-0.0\/
^packaging\/debian\/libtalkatu0?(-.+)?\/
^packaging\/debian\/talkatu-demo\/
^packaging\/debian\/files$
^po\/.+\.pot$
^obj-.+\/
^scanbuild\/
^subprojects\/.+\/
^valgrind\/