Add script for creating maintenance requests
Add script for creating maintenance requests

This change adds a script for creating maintenance requests. The script
basically:

  1. Compares each package on Devel to Product to find out which packages
  changed since the latest MU
  2. If the package changed, check if it is also building
  3. If the package changed and builds successfully include it into the
  list of packages to be included into the MR
  4. Prints the change log of packages on the MR list
  5. Prints the command to create the MR

The script can be used for Cloud 7, 8 and 9 and it also supports a
parameter for regex for excluding packages.

SUSE-Cloud/automation,gosipyan/automation,gosipyan/automation,gosipyan/automation,SUSE-Cloud/automation,gosipyan/automation,SUSE-Cloud/automation,SUSE-Cloud/automation