Add zh-docproj, a set of supportive tools to help the build of PDFs
written in far east languages (GB2312, GBK, BIG5, EUCJP, EUCKR and
UTF-8 encodings).
The code were written by intron <intron at intron dot ac>
Obtained from: The FreeBSD Simplified Chinese Project CVS
Approved by: portmgr (marcus)