skypg v0.0.0

I use to follow the "skype" way of accessing Postgres - to wrap everything into stored procedures.

This is minimalistic wrapper over pg module to allow just this.

If I get to it, here will be the documentation and reasoning why I think it worth doing.

Example of syntax for function returning one row:

create or replace function test ()
returns table (
    "status" int,
    "data" text
) as $$
begin
    return query select 200::int, 'ok'::text;
end;
$$ language plpgsql security definer;