模块依赖, 函数依赖, 包依赖可视化
函数调用关系图
https://github.com/legendtkl/godag
https://github.com/ofabry/go-callvis
https://github.com/ofabry/goexplorer
https://github.com/yqylovy/goimportdot
https://godoc.org/golang.org/x/tools/go/callgraph/static
https://github.com/davecheney/graphpkg
模块关系可视化工具 https://github.com/poloxue/modv
https://godoc.org/golang.org/x/tools/go/pointer
https://github.com/fiefdx/CallingViewer
https://github.com/paetzke/go-dep-graph