Uro3

[zugao]

Summary

• Added the concept of a hidden graph.
• Added a custom user for database resource that is dynamically managed.
• Added the feature to temporarily disable instance reconciliation.

Details

This PR adds the concept of hidden graphs. For each graph added through the organisation resource the user can create a new hidden graph with addHidden = true. The tool will create a second graph with the same link but appended with /hidden at the end.
In order to make use of these hidden graphs the permissions must be altered to specific users. This can always be done via stardoguser and stardorole resources. For permissions that need only access to hidden graphs a new custom user has been introduced per database AddUserForNonHiddenGraphs. The field is used to specify a name and the tool will make sure to dynamically update the permissions of this user in Stardog.
Also with this update, an instance can be temporarily disabled via disabled field.

Checklist

• Categorize the PR by setting a good title and adding one of the labels:
  bug, enhancement, documentation, change, breaking, dependency
  as they show up in the changelog
• Update tests.
• Link this PR to related issues.

[Kidswiss]

I can't review the logic itself, as I don't know how Stardog works, but I found some things that a bit ugly from a code point of view.