[companion-integrate] RTI - Update of SFWafio Package

[Steven M. Christensen]

This is a RTI for the update of the afio Companion CD package to version 
2.5 and a complete redo on its build structure to match the Companion 
standard.

The webrev is at

http://companion.sunfreeware.com/downloads/afiowebrev/

This has been reviewed and approved by Paul Cunningham.

The details are:

1.  All afio source files have been removed.
2.  The afio 2.5 source file has been added.
3.  A METADATA has been added.
4.  The Makefile.sfw file has been modified to fit the normal build
     method.
5.  A patch to the CFLAGS in the Makefile has been added.
6.  An install-sfw file has been added.
7.  The pkgdefs/SFWafio/pkginfo.tmpl file has been updated.
8.  Copyright and version numbers updated where needed.  SCCS ids
     removed.

A nightly build is clean on NV 81.

Steve Christensen