* new route `/api/v3/monitor/data/?oauth_token=xxx&blocksize=16ko`
* add `unit` parameter for size restults ('', 'o', ''ko', 'mo', 'go'), default '' (=octets, same as 'o')
* new units "octet", "octets"
* fix round error (don't sum rounded values: round the real sum)
* add infos about downloads;
round sizes to 2 decimals
* add `...&details=1` url parameter to get values by collection and subdef name
* add column size in LazaretFiles table
add command bin/maintenance lazaret:set_sizes
* add api monitor data by databox
* fix size
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