Rights check on UpdateCorpus

Requires !1777 (merged), closes #1102 (closed)

• Added rights information in the API description
• Added unit tests, since this was yet another untested PUT.

requested review from @babadie

assigned to @erwanrouchet

please rebase @erwanrouchet

added 18 commits

• 33eb862c...cb8d16be - 16 commits from branch master
• 8db371e7 - Rights check on PartialUpdateCorpus
• e0f80ae2 - Rights check on UpdateCorpus

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added 2 commits

• f8029454 - 1 commit from branch master
• 3c0999db - Rights check on UpdateCorpus

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enabled an automatic merge when the pipeline for 3c0999db succeeds

mentioned in commit 8bd651f4

merged