[hierarchy and defintion] file system

initial description:

• should be subclass of software
• structured data instead of data structures

proposed changes:

Thinking about it, a file system has as parts software and data. Therefore the superclass should probably stay under "system". Adjustments to def are requred. relations can be added.

label_en: file system
def_en: A digital system which comprises structured data, (meta)data, and software and which allows a computer to store, organise, and access structured data.
def_de: Ein digitales System welches aus strukturierten Daten, (Meta)daten und Software besteht und das es einem Computer erlauben strukturierte Daten zu speichern, organisieren und auf diese zuzugreifen.
subclassOf: 
  - digital system
  - hasasparts Metadata
  - hasasparts structured data
  - hasasparts software