Added build script written in go that adds build symbols for version, commit and build date

pkg/setting/setting.go

@@ -34,11 +34,15 @@ const (
 var (
 	// App settings.
 	Env       string = DEV
-	AppVer    string
 	AppName   string
 	AppUrl    string
 	AppSubUrl string
 
+	// build
+	BuildVersion string
+	BuildCommit  string
+	BuildStamp   int64
+
 	// Log settings.
 	LogRootPath string
 	LogModes    []string