get cert count from cert meta

as said during RML18, it is better to get cert count from cert meta than indexer to be able to get the result without indexer

assigned to @HugoTrentesaux

added 1 commit

• 17d2f4d1 - also for smith cert

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in json mode, the certifications are not showed when --no-indexer flag is set even it is theoretically possible and easy for smith certs

merged

mentioned in commit e28cb96e