[CXF-6119] WS-Transfer Implementation

Document, where I discuss implementation issues: https://developer.jboss.org/docs/DOC-52429?uniqueTitle=false
Example program: https://github.com/dudaerich/WS-TransferExample

I have also implemented WS-Fragment, because it is required by WS-Transfer. Except in a few special cases, which must be discussed, the implementation is complete. In tests I cover examples given in the specification, which proves correctness of the implementation for these cases.
Document, where I discuss unclear parts in the specification: https://developer.jboss.org/docs/DOC-52941?uniqueTitle=false