Refactor!

create sub packages
delete unused code
delete code from not use command cmdRouter,cmdTest, cmdRundocs
make command plugins
check with gosimple,staticcheck,go vet,unused,unconvert

utils/doc_value.go

@@ -0,0 +1,14 @@
+package utils
+
+import "fmt"
+
+type DocValue string
+
+func (d *DocValue) String() string {
+	return fmt.Sprint(*d)
+}
+
+func (d *DocValue) Set(value string) error {
+	*d = DocValue(value)
+	return nil
+}