Changes in version 0.0.7                        

  - Update default "latest" XSD schema for SpiGes 1.5
  - As the version number is not present anymore in the XSD schema,
    replace the validation message in the console with the XSD schema
    URL.

                        Changes in version 0.0.6                        

  - add format validation message using spiges_get_df()
  - access IDs data with "Personenidentifikatoren" node
  - custom validation format with schema_xsd argument
  - improve documentation
  - add unit tests
  - returns error message with suggestions if node or variable doesn't
    exist
  - return empty tibble with message if no data in node.
  - add condition to fix "Kostentraeger" node variable in
    spiges_get_df()

                        Changes in version 0.0.3                        

  - updated to SpiGes version 4.1

                        Changes in version 0.0.2                        

  - fixed "Operierende" node by adding one level down.