Access Control: Move part of access control database (#40483)

* Add accesscontrol migrations

* Add ResourceStore interface and related structs

* Add team/user/builtin-role

* Add accesscontrol database with functions to handle managed roles and
permissions

* Add ResourceManager

* Add GetUserPermissions

* Update pkg/services/accesscontrol/accesscontrol.go

Co-authored-by: Emil Tullstedt <emil.tullstedt@grafana.com>

pkg/services/sqlstore/migrations/migrations.go

@@ -1,6 +1,7 @@
 package migrations
 
 import (
+	"github.com/grafana/grafana/pkg/services/sqlstore/migrations/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/sqlstore/migrations/ualert"
 	. "github.com/grafana/grafana/pkg/services/sqlstore/migrator"
 )
@@ -55,6 +56,7 @@ func (*OSSMigrations) AddMigration(mg *Migrator) {
 	addSecretsMigration(mg)
 	addKVStoreMigrations(mg)
 	ualert.AddDashboardUIDPanelIDMigration(mg)
+	accesscontrol.AddMigration(mg)
 }
 
 func addMigrationLogMigrations(mg *Migrator) {