oledb - oledb: Added experimental support for "bytea".

Log Message:
-----------
Added experimental support for "bytea".

Modified Files:
--------------
    oledb:
        PgRS.cpp (r1.38 -> r1.39)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/oledb/oledb/PgRS.cpp.diff?r1=1.38&r2=1.39)
        PgRS.h (r1.24 -> r1.25)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/oledb/oledb/PgRS.h.diff?r1=1.24&r2=1.25)
        PgSess.cpp (r1.36 -> r1.37)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/oledb/oledb/PgSess.cpp.diff?r1=1.36&r2=1.37)
        PgSess.h (r1.35 -> r1.36)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/oledb/oledb/PgSess.h.diff?r1=1.35&r2=1.36)
        TypeInfo.cpp (r1.16 -> r1.17)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/oledb/oledb/TypeInfo.cpp.diff?r1=1.16&r2=1.17)
        TypeInfo.h (r1.16 -> r1.17)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/oledb/oledb/TypeInfo.h.diff?r1=1.16&r2=1.17)