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/sqlstore/org.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/grafana/grafana/pkg/events"
 	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/services/org"
 	"xorm.io/xorm"
 )
 
@@ -103,7 +104,7 @@ func isOrgNameTaken(name string, existingId int64, sess *DBSession) (bool, error
 }
 
 func (ss *SQLStore) createOrg(ctx context.Context, name string, userID int64, engine *xorm.Engine) (models.Org, error) {
-	org := models.Org{
+	orga := models.Org{
 		Name:    name,
 		Created: time.Now(),
 		Updated: time.Now(),
@@ -115,14 +116,14 @@ func (ss *SQLStore) createOrg(ctx context.Context, name string, userID int64, en
 			return models.ErrOrgNameTaken
 		}
 
-		if _, err := sess.Insert(&org); err != nil {
+		if _, err := sess.Insert(&orga); err != nil {
 			return err
 		}
 
 		user := models.OrgUser{
-			OrgId:   org.Id,
+			OrgId:   orga.Id,
 			UserId:  userID,
-			Role:    models.ROLE_ADMIN,
+			Role:    org.RoleAdmin,
 			Created: time.Now(),
 			Updated: time.Now(),
 		}
@@ -130,17 +131,17 @@ func (ss *SQLStore) createOrg(ctx context.Context, name string, userID int64, en
 		_, err := sess.Insert(&user)
 
 		sess.publishAfterCommit(&events.OrgCreated{
-			Timestamp: org.Created,
-			Id:        org.Id,
-			Name:      org.Name,
+			Timestamp: orga.Created,
+			Id:        orga.Id,
+			Name:      orga.Name,
 		})
 
 		return err
 	}, 0); err != nil {
-		return org, err
+		return orga, err
 	}
 
-	return org, nil
+	return orga, nil
 }
 
 // CreateOrgWithMember creates an organization with a certain name and a certain user as member.