added a set of csharp bindings based on the C bindings that also provide equivalent examples to the c bindings examples
removed the unncessary pidb files
moved the create functions in the Environment class.
Merge pull request #272 from wj88/master

initial C# Bindings using libopenrave_c
Implemented multicontroller in openravepy_controller.cpp.
Added RaveCreateMultiController.
Registered the MultiController interface.
Added missing source file.