NCT upload script

[mephenor]

Added script to encrypt and upload to S3 storage.
File secret and necessary data is stored locally in a owner read-only file.

Co-authored-by: KerstenBreuer <kersten-breuer@outlook.com>
Co-authored-by: Moritz Hahn <Moritz.Hahn@uni-tuebingen.de>

Do we need a test against a localstack Testcontainer for this?
Retries are handled through a request session object.
Multipart uploads are cleaned up, but if something happens during/after dowanload, object stays in storage.
Do we need to clean this up as well?

[KerstenBreuer]

Sieht gut aus, aber ein local test mittel localstack, den man dann auch im CI laufen lassen kann, wäre schon gut.

Bezüglich dem cleanup bei Fehlern. Es wäre in der Tat ganz gut, wenn die bisher hochgeladenen Files dann gelöscht werden. Sonst haben wir ganz viele Dateileichen, die wir später nichtmer zuordenen können. Kann ja teil der Exception handling logic werden.

[MoritzHahn1337]

• Found a typo
  Regarding what Kersten mentioned:
• We should always use S3-Testcontainers when using S3-Capabilities
• I feel like always using pycurl-requests for consistency, but we can debate this

In total, I think the script could be refactored for readability before we give it to a wider audience - as long as we only use it for the nct master dataset, we should be fine.