Make the XSD generator dynamic.

- Modify the XSD generator constructor to fit the new generic interface.
- Register the XSD genrator with the central registry.
- Deprecate the old way of invoking the XSD generator.
- main.cc no longer includes t_xsd_generator.h.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@745234 13f79535-47bb-0310-9956-ffa450edef68
3 files changed