RBAC: Split non-empty scopes into kind, attribute and identifier fields for better search performance (#71933)

* add a feature toggle

* add the fields for attribute, kind and identifier to permission

Co-authored-by: Kalle Persson <kalle.persson@grafana.com>

* set the new fields when new permissions are stored

* add migrations

Co-authored-by: Kalle Persson <kalle.persson@grafana.com>

* remove comments

* Update pkg/services/accesscontrol/migrator/migrator.go

Co-authored-by: Gabriel MABILLE <gamab@users.noreply.github.com>

* feedback: put column migrations behind the feature toggle, added an index, changed how wildcard scopes are split

* PR feedback: add a comment and revert an accidentally changed file

* PR feedback: handle the case with : in resource identifier

* switch from checking feature toggle through cfg to checking it through featuremgmt

* don't put the column migrations behind a feature toggle after all - this breaks permission queries from db

---------

Co-authored-by: Kalle Persson <kalle.persson@grafana.com>
Co-authored-by: Gabriel MABILLE <gamab@users.noreply.github.com>

pkg/services/accesscontrol/resourcepermissions/service_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/grafana/grafana/pkg/services/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/accesscontrol/acimpl"
 	"github.com/grafana/grafana/pkg/services/accesscontrol/actest"
+	"github.com/grafana/grafana/pkg/services/featuremgmt"
 	"github.com/grafana/grafana/pkg/services/licensing/licensingtest"
 	"github.com/grafana/grafana/pkg/services/org/orgimpl"
 	"github.com/grafana/grafana/pkg/services/quota/quotatest"
@@ -244,7 +245,7 @@ func setupTestEnvironment(t *testing.T, ops Options) (*Service, *sqlstore.SQLSto
 	ac := acimpl.ProvideAccessControl(cfg)
 	acService := &actest.FakeService{}
 	service, err := New(
-		ops, cfg, routing.NewRouteRegister(), license,
+		ops, featuremgmt.WithFeatures(), routing.NewRouteRegister(), license,
 		ac, acService, sql, teamSvc, userSvc,
 	)
 	require.NoError(t, err)