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/accesscontrol/mock/service_mock.go

@@ -5,8 +5,8 @@ import (
 
 	"github.com/stretchr/testify/mock"
 
-	"github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/services/accesscontrol"
+	"github.com/grafana/grafana/pkg/services/user"
 )
 
 var _ accesscontrol.PermissionsService = new(MockPermissionsService)
@@ -19,7 +19,7 @@ type MockPermissionsService struct {
 	mock.Mock
 }
 
-func (m *MockPermissionsService) GetPermissions(ctx context.Context, user *models.SignedInUser, resourceID string) ([]accesscontrol.ResourcePermission, error) {
+func (m *MockPermissionsService) GetPermissions(ctx context.Context, user *user.SignedInUser, resourceID string) ([]accesscontrol.ResourcePermission, error) {
 	mockedArgs := m.Called(ctx, user, resourceID)
 	return mockedArgs.Get(0).([]accesscontrol.ResourcePermission), mockedArgs.Error(1)
 }