[MM-25651] api4/ldap: add migrateid (#14794)

* api4/ldap: add idmigrate

* api4/ldap: add migrateid to local api

* api4/ldap: improve migrate test

* api4/ldap: add licence check

app/app_iface.go

@@ -746,6 +746,7 @@ type AppIface interface {
 	MaxPostSize() int
 	MessageExport() einterfaces.MessageExportInterface
 	Metrics() einterfaces.MetricsInterface
+	MigrateIdLDAP(toAttribute string) *model.AppError
 	MoveCommand(team *model.Team, command *model.Command) *model.AppError
 	MoveFile(oldPath, newPath string) *model.AppError
 	NewClusterDiscoveryService() *ClusterDiscoveryService