This cdist type allows you to create or drop postgres extensions.
The object you need to pass to __postgres_extension consists of the database name and the
extension name joined by a colon in the following form:
state either "present" or "absent", defaults to "present"
Copyright (C) 2014 Tomas Pospisek. You can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.4.4.1 Dec 18, 2016 CDIST-TYPE__POSTGRES_EXTENSION(7)