logging, config file managment, writing library dir

backend/logging/logging.go

@@ -0,0 +1,11 @@
+package logging
+
+import (
+	"encoding/json"
+)
+
+// TODO check that error
+func PrettyJSON(obj interface{}) string {
+	bytes, _ := json.MarshalIndent(obj, "\t", "\t")
+	return string(bytes)
+}