Remove outdated request

It's been implemented.
Add feature request
Use terser, more Unix-like program name
Change of plan

Impulse Tracker and Schism Tracker themselves can rename the files
simply by loading and saving the file after it's been renamed directly
in the operating system.  What I could really do with is extracting
the raw wave file again.
Start work on Impulse Tracker sample describer

So far, it merely prints out the first 72 bytes of each file you give it
Finish basic version 1 of program

It now correctly outputs the internally stored filename and sample
name within the sample file/s you give it, although the code perhaps
isn't the most elegant...