dta and infoflow modules require networkx which brings lot of dependencies.
These dependencies are not necessary for setools module itself as it's
used in policycoreutils.
Therefore it's better to use setools.infoflow.InfoFlowAnalysis and
setools.dta.DomainTransitionAnalysis and let the package containing
sedta and seinfoflow to require python3-networkx
Added new subpackage setools-console-analyses
