Action/Trigger template output aggregator

Action/Trigger template output aggregator

Script to collect template output data from action-trigger events,
potentially spanning multiple event definitions, and stitching the
output together into a single file / output.  The file may then be
delivered to a 3rd party via sFTP/SCP using config.remote_account.

The primary use case of the script is for aggregating CSV, XML, etc.
output to deliver to a 3rd party for notification purposes (e.g. phone,
print notices).  This is useful because a) no one event definition can
cover all notification types and b) template output files can become too
large to practically store in the DB and deliver to/from opensrf
services.

Signed-off-by: Bill Erickson <berick@esilibrary.com>