Support wildcards in Dockerfile

[dcermak]

Is your feature request related to a problem? Please describe.

OBS supports building containers from Dockerfiles, where one can run arbitrary commands for instance install packages via wild cards:

zypper in libfoo*

Unfortunately, the above fails with a Unresolvable: nothing provides libfoo*.

Describe the solution you'd like

It would be great if obs scheduler/parser could handle wildcards or even simpler regexes similarly to how they work in Dockerfiles. This would make it easier to use OBS for newcomers to build containers.

Describe alternatives you've considered

Not using regexes/wildcards. But this is not necessarily known by a developer who is just trying out OBS.