The XML parser

Modules
	Parsing XML files/strings to an XMLNode structure and Rendering XMLNode's to files/string.
	Navigate the XMLNode structure
	Create or Update the XMLNode structure
	The functions in this group allows you to create from scratch (or update) a XMLNode structure.
	Helper class to create XML files using "printf", "fprintf", "cout",... functions.
	Helper class to include binary data inside XML strings using "Base64 encoding".