gather: Create devel module for each normal module
    
    The module has same S:V:C, but the name is suffixed with `-devel`. The
    module should contain all packages from the module koji tag that were
    not included in the actual module.
    
    The devel module has the same dependencies as the regular module, but
    also additionally depends on the original module. The API and profiles
    are cleared in the new module.
    
    In the metadata it shows the same koji tag.
    
    The test if package goes to the module is refactored to a function to
    make work with the negated case a bit easier.
    
    There may be unneeded multilib packages in the -devel module, because
    there might be buildtime dependencies between things that we don't see.
    
    Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
    
    Clear API and profiles
    
    Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>