Plugins: Introduce plugin package specific logger (#62204)

* refactor

* implement with infra log for now

* undo moving

* update package name

* update name

* fix tests

* update pretty signature

* update naming

* simplify

* fix typo

* delete comment

* fix import

* retrigger

pkg/plugins/log/logger.go

@@ -0,0 +1,44 @@
+package log
+
+import (
+	"github.com/grafana/grafana/pkg/infra/log"
+)
+
+func New(name string) Logger {
+	return &grafanaInfraLogWrapper{
+		l: log.New(name),
+	}
+}
+
+type grafanaInfraLogWrapper struct {
+	l *log.ConcreteLogger
+}
+
+func (d *grafanaInfraLogWrapper) New(ctx ...interface{}) Logger {
+	if len(ctx) == 0 {
+		return &grafanaInfraLogWrapper{
+			l: d.l.New(),
+		}
+	}
+
+	ctx = append([]interface{}{"logger"}, ctx...)
+	return &grafanaInfraLogWrapper{
+		l: d.l.New(ctx...),
+	}
+}
+
+func (d *grafanaInfraLogWrapper) Debug(msg string, ctx ...interface{}) {
+	d.l.Debug(msg, ctx...)
+}
+
+func (d *grafanaInfraLogWrapper) Info(msg string, ctx ...interface{}) {
+	d.l.Info(msg, ctx...)
+}
+
+func (d *grafanaInfraLogWrapper) Warn(msg string, ctx ...interface{}) {
+	d.l.Warn(msg, ctx...)
+}
+
+func (d *grafanaInfraLogWrapper) Error(msg string, ctx ...interface{}) {
+	d.l.Error(msg, ctx...)
+}