Create/Delete/Rename Nested reference attribute

[Zorin95670]

Describe the bug

Add/Delete/Rename a container when we declare a nested attribute reference attribute won't work.

To reproduce the bug, add an Object attribute above reference attribute in the demo metadata and parser and can reproduce it.

Notes:
It's a complexe task, because we have to rework on finding container/children, create nested object if its not exists.

Partial list of method to rework:

• DefaultData.getChildren: only check root attributes, need to find nested attributes.
• Component.setReferenceAttribute: only check root attributes, need to find nested attributes and create parents if its not exists.
• Component.removeAllReferenceAttributes only remove root attribute need to remove the wanted nested child attributes.
• Component.getContainerId only look reference from root attributes, need to check children too.

⚠️ May be you have to change some call in DefaultDrawer to make it work.