This update for zypper, libzypp, and libsolv fixes the following issues:

Package: zypper

- Fixes an issue where 'zypper lu' didn't list all available package updates (bsc#1153351)
- Added a new --repo option to the 'download' command to allow to specify a repository (jsc#SLE-9171)
- Improved the documentation of $releasever and --releasever usescases (bsc#1149511)
- zypper will now ask only once when multiple packages share the same license text (bsc#1145554)

Package: libzypp

- Added a new 'solver.focus' option for /etc/zypp/zypp.conf to define systemwide focus
mode when resolving jobs (bsc#1146415)
- Fixed an issue where YaST2 was not able to find base products via libzypp (bsc#1153557)
- Added a new 'solver.focus' option for /etc/zypp/zypp.conf to define systemwide focus
mode when resolving jobs (bsc#1146415)
- Improved the way how containers are detected when running 'zypper ps' (bsc#1146947)

Package: libsolv

- Fixes issues when updating too many packages in focusbest mode
- Fixes the handling of disabled and installed packages in distupgrade

This update was imported from the SUSE:SLE-15:Update update project.