[pgpool-hackers: 4353] Fix pgproto

[Tatsuo Ishii]

I have fixed pgproto so that it can work with bind message with
parameters.

https://git.postgresql.org/gitweb/?p=pgpool2.git;a=commit;h=df10424ea72fddae7a287ff4fde93ab760ef7dd4

Previous it only worked with non-parameter bind message.  For example,
you describe a bind message in pgproto data file like this:

statement name: "foo"
portal name: "bar"
all params in text format: 0
number of params: 1
parameter length: 2
parameter value: "10"
number of result format code: 1
result format code: 0 (text)

'B'	"bar"	"foo"	0	1	2	"10"	1	0

Best reagards,
--
Tatsuo Ishii
SRA OSS LLC
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp