ENH: Add minimal functionality

Summary

See https://gitlab.indiscale.com/caosdb/customers/lfpb/management/-/issues/381. Review is done in https://gitlab.com/caosdb/caosdb-julialib/-/merge_requests/2

Insert a meaningful description for this merge request here.  What is the
new/changed behavior? Which bug has been fixed? Are there related Issues?

Focus

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reading? What should they focus on (e.g. security, performance,
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corner cases, concrete questions)?

Test Environment

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Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related Issues
• Up-to-date CHANGELOG.md
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md
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For further good practices have a look at our review guidelines.

src/CaosDB.jl

@@ -81,7 +81,7 @@ authenticator object from a configuration.
 mutable struct _Authenticator
     wrapped_authenticator::Ptr{Cvoid}
 
-    function _Authenticator(managed_by_julia::Bool=false)
+    function _Authenticator(managed_by_julia::Bool = false)
         auth = new()
         if managed_by_julia
             # Only append a finalizer for this if the object is