These new classes subclass int to override the string representation with
the appropriate text from the policy. This allows programmatic uses of the
values, but allows useful display of the values at any time, not just in
the Genfscon/Portcon statement strings.
Has the benefit of unifying the object attributes for port range and MLS
range objects, making the PolicyQuery._match_range() function work
naturally for both object types.
* break apart classes that are overloaded (e.g. TypeAttr)
* move object class member function out of Rule subclasses, into Rule.
* Fix SWIG wrapper to make class member function for rules to be consistent
Fully compare the lists rather than only counting objects.
Also fix comparison problem in Nodecon and Genfscon. In libqpol, the all
genfscons/nodecons iterators allocate new objects, so the pointer
comparison in PolicySymbol fails.
Otherwise the Python would have to use unsafe cdata.i SWIG functions to
access the memory areas to do the same thing.
Also eliminate the QPOL_IPV4/QPOL_IPV6 from the protocol funtion, to
abstract away the binary policy representation details.
