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/tests/api/alerting/api_provisioning_test.go

@@ -7,7 +7,7 @@ import (
 	"net/http"
 	"testing"
 
-	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/services/org"
 	"github.com/grafana/grafana/pkg/services/user"
 	"github.com/grafana/grafana/pkg/tests/testinfra"
 	"github.com/stretchr/testify/require"
@@ -25,17 +25,17 @@ func TestProvisioning(t *testing.T) {
 
 	// Create a users to make authenticated requests
 	createUser(t, store, user.CreateUserCommand{
-		DefaultOrgRole: string(models.ROLE_VIEWER),
+		DefaultOrgRole: string(org.RoleViewer),
 		Password:       "viewer",
 		Login:          "viewer",
 	})
 	createUser(t, store, user.CreateUserCommand{
-		DefaultOrgRole: string(models.ROLE_EDITOR),
+		DefaultOrgRole: string(org.RoleEditor),
 		Password:       "editor",
 		Login:          "editor",
 	})
 	createUser(t, store, user.CreateUserCommand{
-		DefaultOrgRole: string(models.ROLE_ADMIN),
+		DefaultOrgRole: string(org.RoleAdmin),
 		Password:       "admin",
 		Login:          "admin",
 	})