function HuffCodeTab(len, max, tab, hl) {
	    this.xlen = len;
	    this.linmax = max;
	    this.table = tab;
	    this.hlen = hl;
	}
Write final VBR tag to the file.

@param gfp
           global flags
@param stream
           stream to add the VBR tag to
@return 0 (OK), -1 else
@throws IOException
            I/O error