Move targets and packages from build-go to config-go

@filbranden This should help with building things not using the build-go script and doing it by hand.  This should be the last of the 'brains' in build-go.sh
Actually, taking a look at this one from a high level, I think you shouldn't create a "binaries" array at all and just use "echo" inside the loop, write one binary per line...