BLib.BFont - Read and Write Acorn BBC BASIC data files
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		       File: BFont -- Update: 1.00
		 Author: J.G.Harston - Date: 23-Feb-1991


PROCBFont_Load(file$,start%) - Load bitmap font
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file$  = bitmap font file to load
start% = start character to load to or 0 for VDU file

PROCBFont_Save(file$,start%,end%,raw%) - Save bitmap font
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file$  = bitmap file to save to
start% = start character to save
end%   = end character to save
raw%   = FALSE to save as VDU file, TRUE to save as bitmap