Print out the goroutine id (#3433)

The TXT logger prints out the actual go routine ID

This feature depends on 'loggoroutine' build tag

```go build -tags loggoroutine```

formatter/txt/formatter.go

@@ -0,0 +1,31 @@
+package txt
+
+import (
+	"time"
+
+	"github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/formatter/levels"
+)
+
+// TextFormatter formats logs into text with included source code's path
+type TextFormatter struct {
+	timestampFormat string
+	levelDesc       []string
+}
+
+// NewTextFormatter create new MyTextFormatter instance
+func NewTextFormatter() *TextFormatter {
+	return &TextFormatter{
+		levelDesc:       levels.ValidLevelDesc,
+		timestampFormat: time.RFC3339, // or RFC3339
+	}
+}
+
+func (f *TextFormatter) parseLevel(level logrus.Level) string {
+	if len(f.levelDesc) < int(level) {
+		return ""
+	}
+
+	return f.levelDesc[level]
+}