added MS Word UNC injector aux and post modules

Information about the modules and usage examples: http://jedicorp.com/?p=534

Two modules (POST and AUX) for injecting an UNC path into MS Word 
.docx files. When the injected document gets opened in write mode 
on a Windows host the netNTLM information will be send to the 
set LHOST for capture or relay-attack.