Fixes this so that only if you delete all references, wii the data object be removed.
Also assures that a new data object is not created when adding to a participant in a collaboration (an edge case bug(.
1. When you rename a DataObject in the properties panel for a process, the labels of all the references should update.
2. Sub-processes should have their own independent list of data objects in the properties panel.
2. When injecting something, I realized how important having lowercase names in the imports can be. So changed the index.js files to refer to lower case names always.
3. Added a test for the DataObjectRules.
Adding new data object rules that will prevent you from moving a DataObject from one process to a sub-process.
Fixing the Selection of Data Objects to properly use the command stack.