roles/archbuild: Add archbuild role

playbooks/soyuz.yml

roles/archbuild/files/clean-chroots

roles/archbuild/files/clean-chroots.service

roles/archbuild/files/clean-chroots.timer

roles/archbuild/files/clean-dests

roles/archbuild/files/clean-dests.service

roles/archbuild/files/clean-dests.timer

roles/archbuild/files/diffrepo

roles/archbuild/files/mkpkg

roles/archbuild/files/strictatime@.service

roles/archbuild/files/var-lib-archbuild.mount

roles/archbuild/files/var-lib-archbuilddest.mount

roles/archbuild/handlers/main.yml

roles/archbuild/tasks/main.yml