[x] Add aruna storage driver and extend configuration/views
[x] Add manual section
[x] Check if everything works
[ ] Consider to implement automatic retries in the aruna storage driver because there are often initial errors (these resolve themselves after 1-2 retries after 2-5 seconds)
Resolves #1
Todo:
Consider to implement automatic retries in the aruna storage driver because there are often initial errors (these resolve themselves after 1-2 retries after 2-5 seconds)