Be sure to publish standalone *.xsd files

The Last Call publication of XForms 1.0 contains the schema inline as text,
but not anywhere in TR space that I could find.

We should be sure to publish all the XSD files (in addition to the inline
text).

Example:

http://www.w3.org/TR/2002/WD-xforms-20020118/XForms-Schema.xsd

This link should work, but it doesn't.

Thanks,

.micah