Add a skip_remote arg to go compiler

Currently the go compiler will generate a -remote folder for each service defined in the thrift file, which constitutes the code to create a client binary (not library) for the service.

This seems to be a go-only feature (at least I do not see it in py and java compilers), and for some users they don't really need this part of the code, and they need to do extra steps to remove the -remote folders (for example we do this)

So add this extra arg will help people not need it to avoid the extra step.