bizgres - bizgres: Added CSV and BINARY data formats to the buffered

Log Message:
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Added CSV and BINARY data formats to the buffered parsing execution path
of TEXT format. Code refactored and eliminated previous duplications.

Modified Files:
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bizgres/postgresql/src/backend/commands:
copy.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/bizgres/bizgres/postgresql/src/backend/commands/copy.c.diff?r1=1.2&r2=1.3)