[PD] soundfiler feature request - 8 bit samples

[ClaudiusMaximus]

It would be very useful for me if [soundfiler] could load raw 8 bit 
samples, both signed and unsigned variants.

Another very useful feature would be to be able to load IFF/8SVX 
samples, these are signed 8 bit with a variable length header.  Nearly 
all of my sample collection is in this format, having migrated from the 
Amiga platform running OctaMED SoundStudio a couple of years ago (aside: 
I am working on a tool to convert OctaMED modules into Gridflow grids + 
Pd patches, if anyone is interested then shoot me an email).

Meanwhile I can convert the samples one by one with Sox, so it isn't 
such a major issue.