ZIMP - Init the Zimple Bank project

zzh@ZZHPC:~/zd/Github/zimplebank$ go mod init github.com/ZhangZhihuiAAA/zimplebank
go: creating new go.mod: module github.com/ZhangZhihuiAAA/zimplebank
go: to add module requirements and sums:
        go mod tidy
zzh@ZZHPC:~/zd/Github/zimplebank$ go mod tidy