Plugins: Add tailored interface for plugins licensing needs (#61045)

* tailored licensing service

* appease linter

* fix

* retrigger

pkg/plugins/licensing/licensing.go

@@ -0,0 +1,38 @@
+package licensing
+
+import (
+	"fmt"
+
+	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/setting"
+)
+
+type Service struct {
+	licensePath string
+	license     models.Licensing
+}
+
+func ProvideLicensing(cfg *setting.Cfg, l models.Licensing) *Service {
+	return &Service{
+		licensePath: cfg.EnterpriseLicensePath,
+		license:     l,
+	}
+}
+
+func (l Service) Environment() []string {
+	var env []string
+	if envProvider, ok := l.license.(models.LicenseEnvironment); ok {
+		for k, v := range envProvider.Environment() {
+			env = append(env, fmt.Sprintf("%s=%s", k, v))
+		}
+	}
+	return env
+}
+
+func (l Service) Edition() string {
+	return l.license.Edition()
+}
+
+func (l Service) Path() string {
+	return l.licensePath
+}