Log Message:-----------Implement basic lseg interfaces.
Modified Files:-------------- be/src: type.c (r1.17 -> r1.18) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/be/src/type.c.diff?r1=1.17&r2=1.18) be/src/type: geometric.c (r1.4 -> r1.5) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/be/src/type/geometric.c.diff?r1=1.4&r2=1.5)