pgsql: Add psql completion for [ NO ] DEPENDS ON EXTENSION

Add psql completion for [ NO ] DEPENDS ON EXTENSION

ALTER INDEX was able to handle that already. This adds tab completion
for all the remaining commands that support this grammar:
- ALTER FUNCTION
- ALTER PROCEDURE
- ALTER ROUTINE
- ALTER TRIGGER
- ALTER MATERIALIZED VIEW

Author: Ian Lawrence Barwick
Discussion: /messages/by-id/CAB8KJ=iypYudXuMOAMOP4BpkaYbXxk=a2cdJppX0e9mJXWtuig@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/e6b8e83b9f012cfbb3a2f96a7d2e74aebd299d4e

Modified Files
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src/bin/psql/tab-complete.c | 27 ++++++++++++++++++---------
1 file changed, 18 insertions(+), 9 deletions(-)