Add global option for creating source files and pdbs for all dynamically generated code

[abe545]

Right now, when the remote server generates an exception (or there is a problem parsing the results), the best location a programmer can get the exception is at the call site of their code. It would be really nice if the library could generate source files along with the dynamic methods, so better debugging can happen.

This will be a lot of work. And it will slow down everything, so it is really only useful while debugging.