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.
	ato? like functions
	The "xmlto?" functions are equivalents to the atoi, atol, atof functions.
	Helper class to create XML files using "printf", "fprintf", "cout",... functions.
	Helper class to include binary data inside XML strings using "Base64 encoding".