[opwig] Adding parser::DeclSpecifier class.
[opwig] parser::DeclSpecifier::type() done.
[opwig] parser::DeclSpecifier::is_virtual() done.
[opwig] Improved parser::DeclSpecifier constructor possibilities.
[opwig] parser::DeclSpecifier::Join() done.
[opwig] TypeActions now return DeclSpecifier's.
[opwig] Virtual methods detection complete, but untested.
[opwig] Parsing tests for virtual functions part 1.
[opwig] Parsing tests for virtual functions end.