GitLab

Added appropriate mutex locks and updated qt code to use Qt:QueuedConnection.

 - Added IncludeIndex property to Attribute, Definition, and View
- Added Directory and FileInfo classes in the attribute namespace
- Added DirectoryInfo Property to Attribute Resource
- attributeReaderWriterTest can optionally save an attribute resource using include files
- refactored AttributeReader to use an Internals class for Pugi Functionality and now constructs a DirectoryInfo representation of an attribute resource’s include structure
- attributeWriter can now process an attribute resource’s directoryInfo
- XmlDocumentParsers
	- Removed ModelInfo sections - they where never being used
	- Added IncludeFileIndex property - this used in setting Attribute, Definition, and View IncludeIndex Property
	- Added getCatagories static method to the V1 Parser
- XmlStringWriters
	- Removed ModelInfo sections - they where never being used
	- Simplified the API as a result of removing the Attribute Resource Set IO
	- Added ability to save attribute resource using include files
- Removed Attribute Resource  Set I/O - this is anticipation of removing the Attribute Resource Set classes (these are probably no longer needed in SMTK 3.0)

- Also addressed a bug in the V1/V2 XML Parser that was not properly loading in
Association Rules

- Also replaced cases where code was getting raw pointers from shared pointers unnecessarily

- Also added an owningModel() method to model::Entity to return its owrning model