CLDSRV-892: store part checksum in part shadow object#6154

leif-scality wants to merge 2 commits intodevelopment/9.4scality/cloudserver:development/9.4from

improvement/CLDSRV-892-store-checksum-in-part-shadow-objectscality/cloudserver:improvement/CLDSRV-892-store-checksum-in-part-shadow-objectCopy head branch name to clipboard