orafce - orafce: Added simple real emulation of Oracle's package

Log Message:
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Added simple real emulation of Oracle's package dbms_pipe

dbms_pipe.pack_message()
dbms_pipe.send_message()
dbms_pipe.receive_message()
dbms_pipe.unpack_message()

This package solve intersession comunication.
ToDo: Enhance pipe queue for len bigger than one

Modified Files:
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orafce:
Makefile (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/Makefile.diff?r1=1.3&r2=1.4)
README.orafunc (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/README.orafunc.diff?r1=1.5&r2=1.6)
orafunc.sql.in (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/orafunc.sql.in.diff?r1=1.7&r2=1.8)
others.c (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/others.c.diff?r1=1.1&r2=1.2)
putline.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/putline.c.diff?r1=1.2&r2=1.3)

Added Files:
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orafce:
pipe.c (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/pipe.c?rev=1.1&content-type=text/x-cvsweb-markup)
orafce/sql:
dbms_pipe.sql (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/sql/dbms_pipe.sql?rev=1.1&content-type=text/x-cvsweb-markup)