python - lo: Add standard, optparse, client options module.

Log Message:
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Add standard, optparse, client options module.

Provides standard postgresql client options for command line Python clients.

Added Files:
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lo/postgresql/utility/client:
option.py (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/lo/postgresql/utility/client/option.py?rev=1.1&content-type=text/x-cvsweb-markup)