[PATCH] Tab completion for CREATE OR REPLACE

Hello, hackers:

I created a patch about tab completion for command CREATE OR REPLACE in psql
includes:
	CREATE [ OR REPLACE ] FUNCTION
	CREATE [ OR REPLACE ] PROCEDURE
	CREATE [ OR REPLACE ] LANGUAGE
	CREATE [ OR REPLACE ] RULE name AS ON event
	CREATE [ OR REPLACE ] VIEW AS SELECT
	CREATE [ OR REPLACE ] AGGREGATE
	CREATE [ OR REPLACE ] TRANSFORM

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Regards
Shenhao Wang