Make the C# generator dynamic.

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


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665608 13f79535-47bb-0310-9956-ffa450edef68
3 files changed