Martin Lowe authored Sep 13, 2019 and Christopher Guindon committed Oct 16, 2019

Added TTL cache functionality based on 3rd party code. Added user fetch,
cache (through new timed HTTP cache wrapper layer), updated Sync to use
new endpoint structure. Added option to set permissions on repo for team
when adding.

Change-Id: Ica0ef9aac59192ab1c71b36b36eeba4c20bc6988
Signed-off-by: Martin Lowe <martin.lowe@eclipse-foundation.org>