Move those things out of the state table.

For now the atifs selection sticks to the old rules, thus it is bound to
the available and selected shader capabilities. We may want to change that
in the future.

Some fragment pipeline implementations may want to register their own
texture transform handlers.

user32: sizeof DDEPOKE and DDEDATA is six, which is probably not what is expected, so use offsetof instead.

This avoids trouble with the broken MingW libraries when
cross-compiling the tests.