Implement POST /api/stable/repository/collection/{collectionId}/version

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Implement a file upload

Best would be to not save the file to temporary directory, and stream to storage immediately, while being able to analyze the stream on the fly (e.g. if there are GPG headers present).

File upload should:

• Respect quota limits. With "additional space" in case when upload exceeds the quota a little bit (difference between total backups size and max collection size)
• Should use a storage adapter to use local filesystem, s3, gcs or other cloud storage
• Check permissions
• Rotate uploaded versions (mark old as inactive and delete from storage) AFTER SUCCESSFUL UPLOAD
• Interface for rotating backups with two implementations: fifo and fifo-plus-older (selectabe rotation strategies)
• Respect optional "backup windows" to allow only uploading in selected time
• If user is using a "temporary token" then this token needs to be deactivated RIGHT AFTER SUCCESSFUL UPLOAD
• Only people with role uploader in given collection (or system-wide with uploader or systemAdmin) can upload
• Security: Allow for optional validation if file is GPG encrypted (best would be to early exit if there are no GPG headers. Also check if there is a GPG footer at the end of upload)

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Example backup strategy:

strategy: fifo-plus-older
strategySpec:
        keepLastOlderNotMoreThan: 5d
        maxOlderCopies: 2

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Related: #156

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Related: #97

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Related: #122

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Related: #127

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Related: #140

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GPG validation

curl -s -X POST -H 'Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE5NjA0MDQ5NzcsImxvZ2luIjoiYWRtaW4iLCJvcmlnX2lhdCI6MTY0NTA0NDk3N30.uedO-28NdW7KQg9H2sqXkM_PzdgBTlD_iaxc65YXi5A' -F "file=@Makefile" 'http://localhost:8080/api/stable/repository/collection/iwa-ait/version'

{
    "data": {},
    "error": "cannot upload version. cannot upload file, cannot copy stream, error: first chunk of uploaded data does not contain a valid GPG header",
    "status": false
}

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Locking support

{
    "data": {},
    "error": "cannot upload to same collection in parallel",
    "status": false
}

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Implemented.