Add a default business template that can automatically setup a Wendelin instance without users' input. This bt5 should be used for automated testing ONLY.

(Test speed becomes network dependant rather than storage evaluated). Thus use initial default for now.

Revert "Increase from 1MB to 10MB upload file size."

This reverts commit 42d6afa4.

Revert "(Test speed becomes network dependant rather than storage evaluated). Thus use initial default for now."

This reverts commit 703c4c7a.

(Test speed becomes network dependant rather than storage evaluated). Thus use initial default for now.
Revert "Add default wendelin cluster configuration which is to be used on a Test Suite."

This reverts commit bb47a80d.

Tests passing locally thus safe to merge/

/reviewed-on nexedi/wendelin!37

Add minimal security.

Upload 1Mb of data.

Add dependencies.

Every validated Data Set (and repsective Data Stream placeholders) once validated become accessible to anonymous user. This implements default data lake policy: all can download data sets but only authenticated can upload