libzypp from zypp:Head project

For openSUSE Tumbleweed run the following as root:

zypper addrepo https://download.opensuse.org/repositories/zypp:Head/openSUSE_Tumbleweed/zypp:Head.repo
zypper refresh
zypper install libzypp

For openSUSE Factory Staging L run the following as root:

zypper addrepo https://download.opensuse.org/repositories/zypp:Head/openSUSE_Factory_Staging_L/zypp:Head.repo
zypper refresh
zypper install libzypp

For openSUSE Leap 15.6 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/zypp:Head/openSUSE_Leap_15.6/zypp:Head.repo
zypper refresh
zypper install libzypp

For openSUSE Leap 16.0 run the following as root:

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