fontconfig from home:fabio_s:harmony project

For 15.6 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:fabio_s:harmony/15.6/home:fabio_s:harmony.repo
zypper refresh
zypper install fontconfig

For 15.5 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:fabio_s:harmony/15.5/home:fabio_s:harmony.repo
zypper refresh
zypper install fontconfig