mkcue from home:msrex project

For 15.5 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:msrex/15.5/home:msrex.repo
zypper refresh
zypper install mkcue

For 15.4 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:msrex/15.4/home:msrex.repo
zypper refresh
zypper install mkcue

For 15.3 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:msrex/15.3/home:msrex.repo
zypper refresh
zypper install mkcue