dfilt - c++filt like tool to demangle D names

[Trass3r]

Since I couldn't find a tool like c++filt for D I quickly hacked one  
together.
Very useful especially for 'objdump -d test.o | dfilt'.
If anybody is interested:  
https://github.com/Trass3r/tools/blob/master/dfilt/dfilt.d


Side note: seems like core.demangle can't demangle _D5utils7__arrayZ, bug?