File _patchinfo of Package patchinfo.19123

<patchinfo incident="19123">
  <issue tracker="jsc" id="ECO-3458"/>
  <issue tracker="jsc" id="SLE-17656"/>
  <packager>JonathanKang</packager>
  <rating>low</rating>
  <category>recommended</category>
  <summary>Recommended update for libmodulemd</summary>
  <description>This update for libmodulemd fixes the following issues:

- Added support for 'buildorder' to Packager documents
- Fixed an issue with ModuleIndex when input contains only Obsoletes documents
- Extended read_packager_[file|string]() to support overriding the module name and stream
- Ignore Packager documents when running ModuleIndex.update_from_*()
- Added python overrides for XMD in PackagerV3
- Added python override to ignore the GType return when reading packager files
- Added PackagerV3.get_mdversion()
</description>
</patchinfo>