add otel module based on uptrace-go

Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>

logger/otellog/otellog.go

@@ -0,0 +1,17 @@
+package otellog
+
+import (
+	"context"
+
+	"github.com/uptrace/opentelemetry-go-extra/otellogrus"
+	otellogrus2 "go.opentelemetry.io/contrib/bridges/otellogrus"
+
+	"go.linka.cloud/grpc-toolkit/logger"
+)
+
+func Setup(ctx context.Context, name string, levels ...logger.Level) logger.Logger {
+	log := logger.C(ctx).WithFields("name", name)
+	log.Logger().AddHook(otellogrus2.NewHook(name, otellogrus2.WithLevels(levels)))
+	log.Logger().AddHook(otellogrus.NewHook(otellogrus.WithLevels(levels...)))
+	return log
+}