Contract references in aci-integration-module (AIM) were previously
created or destroyed by modifying list members of the ExternalNetwork
resource. This caused problems when the ExternalNetwork was monitored
state but the contract references were meant to be configured state,
as the view of the monitored universe/state could be inconsistent from
time to time, causing the contract references to inadvertently get
deleted.
A recent commit (9076bd8738e27052e75ec53052e509c54c4b91ea) in AIM made
the contract references top-level resources, so that their creation or
removal can only be made directly. The aim_lib module was changed to
support passing lists of provided and consumed contracts expclicitly,
in order to adopt these changes.
Change-Id: I14b01bea751823c3e3b70df3e7f41ea5babd9522
2e5ec528b6