Add interface to load attributes from external source
It should be possible to save / load these attributes from a file that is separate from the interface view in order to give the users a possibility to set these attributes independently from Space Creator.
- The file format does not have to be XML (readable alternatives: YAML, JSON, if they are equally easy to parse).
- If an element in the file is not present in the model, it shall be ignored.
- If an attribute is missing from the file but found in the model, the existing value in the model should be kept.
Edited by Alejandro Exojo