Moving cruftier services that are only used for tests under a test repo

test/logger/README.md

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+# Logger
+
+A service which demonstrates how to use the logger

test/logger/main.go

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+package main
+
+import (
+	"time"
+
+	"github.com/micro/micro/v3/service"
+	"github.com/micro/micro/v3/service/logger"
+)
+
+func main() {
+	go func() {
+		for {
+			logger.Infof("This is a log line %s", time.Now())
+			time.Sleep(1 * time.Second)
+		}
+	}()
+
+	service.Run()
+}