[hierarchy] data infrastructure

initial description:

in sprint we discussed to make data infrastructure a subclass of information technology infrastructure

proposed changes:

label: data infrastructure
subclassOf: Information technology infrastructure
def_en: An information technology infrastructure which supports the handling of data.
def_de: Eine Informationstechnologieinfrastruktur die die Verarbeitung von Daten unterstützt.

ToDo's

• change superclass
• adjust def de
• adjust def en