Story/cite 174 - There should be an API endpoint to create new items

[PradnyaC11]

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There should be an API endpoint to create new items

... Put ticket description here and add link to ticket ... It should be possible to also send files in requests that will start a giles upload. This will probably need a full Giles setup. Talk to Julia first before picking this ticket.

https://diging.atlassian.net/browse/CITE-174

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