Rename SWXMLParser to FullXMLParser
Rename SWXMLParser to FullXMLParser

I feel like this better reflects the difference between it and
LazyXMLParser.

drmohundro/SWXMLHash,jpsim/SWXMLHash,jpsim/SWXMLHash,jpsim/SWXMLHash,drmohundro/SWXMLHash