Services vs Internal Services categories

We have a category for the EGI Services, which reflects the EGI Service Catalogue – services offered by EGI to external customers. However, we don’t have one for the EGI Internal Service Catalogue. I suggest we create it. Some topics (such as Argo Messaging Service and ARGO-Service-Monitoring) should be categorised in this for example (there are many other internal services there too).

We could do this quite easily using the API, similar to the seeding that we do with the categories for the public services