Move SignedInUser to user service and RoleType and Roles to org (#53445)

* Move SignedInUser to user service and RoleType and Roles to org

* Use go naming convention for roles

* Fix some imports and leftovers

* Fix ldap debug test

* Fix lint

* Fix lint 2

* Fix lint 3

* Fix type and not needed conversion

* Clean up messages in api tests

* Clean up api tests 2

pkg/services/live/features/broadcast.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/grafana/grafana/pkg/infra/log"
 	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/services/user"
 
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 )
@@ -36,7 +37,7 @@ func (b *BroadcastRunner) GetHandlerForPath(_ string) (models.ChannelHandler, er
 }
 
 // OnSubscribe will let anyone connect to the path
-func (b *BroadcastRunner) OnSubscribe(_ context.Context, u *models.SignedInUser, e models.SubscribeEvent) (models.SubscribeReply, backend.SubscribeStreamStatus, error) {
+func (b *BroadcastRunner) OnSubscribe(_ context.Context, u *user.SignedInUser, e models.SubscribeEvent) (models.SubscribeReply, backend.SubscribeStreamStatus, error) {
 	reply := models.SubscribeReply{
 		Presence:  true,
 		JoinLeave: true,
@@ -56,7 +57,7 @@ func (b *BroadcastRunner) OnSubscribe(_ context.Context, u *models.SignedInUser,
 }
 
 // OnPublish is called when a client wants to broadcast on the websocket
-func (b *BroadcastRunner) OnPublish(_ context.Context, u *models.SignedInUser, e models.PublishEvent) (models.PublishReply, backend.PublishStreamStatus, error) {
+func (b *BroadcastRunner) OnPublish(_ context.Context, u *user.SignedInUser, e models.PublishEvent) (models.PublishReply, backend.PublishStreamStatus, error) {
 	query := &models.SaveLiveMessageQuery{
 		OrgId:   u.OrgId,
 		Channel: e.Channel,