swig: 2.0.11 - Enable Windows Golang bindings generation

When trying to generate Go bindings with SWIG on Windows, compilation will fail because of missing symbols. This is due to the fact that Windows doesn't have load time symbol resolution. This patches fixes this by modifying the SWIG code generation to resolve the 3 missing symbols at DLL load.
See https://groups.google.com/forum/#!topic/golang-nuts/9L0U4Q7AtyE for more info.