Add Maestro card numbers for Belgium

[fighou]

We noticed that Maestro is not completely managed in Cardidy. We need to add support to maestro in order to test Bancontact implementation for D-EDGE PAY: https://docs.adyen.com/payment-methods/bancontact/bancontact-card/api-only/#test-and-go-live

Wikipedia does not contain all Maestro ranges, but we can consider that they are missing since they exist on freebinchecker: https://www.freebinchecker.com/belgium_maestro-bin-list-brand?hl=fr

[torendil]

Validated, the commits are from a known source