make build as default inplementation in GoCompiler trait
Motivation: when customize GoCompiler, usually we only want to customize go build command, we don't need to re-implement the copying lib or generating bindgen. User can choose to implement go_build only, or full implement build if they want.
go_buildfrombuildmethodbuildas default inplementation in GoCompiler traitMotivation: when customize GoCompiler, usually we only want to customize go build command, we don't need to re-implement the
copying liborgenerating bindgen. User can choose to implementgo_buildonly, or full implementbuildif they want.