Follow-up on #1068 (#1567)
* BestParaHead small changes Signed-off-by: Serban Iorga <[email protected]> * Renamings Signed-off-by: Serban Iorga <[email protected]> * Use ParaInfo in parachains loop Signed-off-by: Serban Iorga <[email protected]> * Define StorageMapKeyProvider Signed-off-by: Serban Iorga <[email protected]> * CR fixes Signed-off-by: Serban Iorga <[email protected]>