Adding a sample xml file for parsing.
XmlParser: parses xml into an in-core tree and can print it.
Adding some accessors for the parsed xml.
Merge branch 'master' into simple_xml

Conflicts:
	VajraFramework/ExampleGame/Code/ExampleGame/Components/GameScripts/Units/PlayerUnit.h
Merge pull request #37 from VajraFramework/simple_xml

Simple xml