WIP Improve TUS error handling

[PVince81]

Description

Abort directly for known error codes.
Added TODO to parse error message.

Related Issue

For https://github.com/owncloud/ocis-reva/issues/200
Requires TUS client support for retry callback: tus/tus-js-client#198

Motivation and Context

How Has This Been Tested?

Not tested yet

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

Open tasks:

• decide on error message handling, see https://github.com/owncloud/ocis-reva/issues/199
• changelog

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[CLAassistant]

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[kulmann]

Thanks for the ideas. We'll have a look at the new tus-js-client 2.3.0 soonish. Added this PR for reference in this ticket, so that we can give it another try after the upgrade.