WIP: Add inline upload to object storage

Kamil Trzcińskirequested to merge
add-inline-upload-to-object-storage into master

This is baseline implementation of inline upload to object storage.

It is not working for Artifacts due to lack of Content-Length ahead of time.

This implementation if changed will work for all other uploads: LFS/Attachments/others.

Not to be merged.

Edited by Kamil Trzciński

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