The PPD compiler should convert the PPD files into a binary format
that can be directly used by the printer driver without having to
reparse the ASCII files.  The PPD compiler should have the following
command line syntax:

	 ppd2bin -i <input file list> -o <output file>

Note that the input file list should support the wildcard operator
so that it is possible to specify all the ppd files in the current
directory by giving "*.ppd".

The output of the PPD compiler should be a directory consisting of
printer names and indexes into a table containing the detailed
information about each printer.

The printer driver will be interested in the following information
from the PPD file.  Other information may be discarded.

     Password		    - The printer's password
     Throughput 	    - Number of pages printed per minute
     FreeVM		    - Amount of free virtural memory
     Product name	    - The printer's name
     Default resolution     - The resolution in dpi
     Screen frequency	    - The half-tone screen frequency in cells per inch
     Paper Size Information
	 a) default paper size
	 b) list of paper sizes
	 c) command strings for selecting each paper size
	 d) dimensions of each paper size
	 e) imageable area for each paper size

     Input paper bins
	 a) ASCII name for each bin (manual feed, upper, middle, lower)
	 b) command strings for selecting each input bin

     Output paper bins
	 a) ASCII name for each bin
	 b) command string for selecting each output bin

     Fonts
	 a) Default font name
	 b) Other fonts supported on the printer

	 Note: the version string should be stripped from the font name
