This commit introduces new to_text_type helper method and calls it
for return value of all mmd.dumps() calls. That way, we always
end up with proper unicode string represntation on both python
major versions.
This commit also adds unicode character to description of all
the yaml files we use in the tests so we can be sure MBS can
handle unicode characters properly.
This might be temporary fix, depending on the result of discussion
at https://github.com/fedora-modularity/libmodulemd/issues/184.
Future use cases will require the ability to find compatible module builds
to buildrequire based on the base module the module used to build. This
commit adds an association table that will contain module build IDs
and the base module they buildrequire.
Addresses FACTORY-3353
The built RPM artifacts were being added to the components list (the
RPMs to build) instead of the proper artifacts section. Also, they
need to be in NEVRA format, so use 'rpm -qf' to query the epochs from
the built artifacts.
