Find namespace from topic name

[ThomasCAI-mlv]

Add the possibility to find the namespace which is the owner of a topic, thanks to a given topic name.

The PR adds the topic query parameter in the LIST namespace API:

• if the query parameter is an empty string, the endpoint doesn't filter at all by the topic name.
• if the query parameter is not empty, the endpoint finds the namespace which is the owner of the topic. It returns no namespace if no namespace is owner of the topic (or the topic doesn't exist).

Maybe, the implementation could be 2 additional parameters, resource type and resource name, to allow the search on all types of resources (not only topics), I left it to discussion.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[loicgreffier]

@ThomasCAI-mlv OK for me