type Command struct {
// Dir is the path to a directory containing the Kptfile to sync Dir string Verbose bool DryRun bool StdOut io.Writer StdErr io.Writer}
Command syncs the dependencies delared in the Kptfile -- getting, updating, or
deleting the dependencies as needed.
Run syncs all dependencies declared in the Kptfile, fetching them
if they are missing, updating them if their versions have changed,
and deleting them if they should not exist.