Initial release of XMF Extractor

This is an initial release of the crude XMF Extractor tool. You should be able to open an XMF file (*.xmf, *.mxmf) and view a list of the files inside it, then export selected files from inside the file by clicking File-Save.

Very little of the XMF specification is covered here (and what is covered is probably buggy) but basic inline files (with or without Zlib compression) seem to be supported. Use at your own risk!