bug 2591: adaptation_access does not work

bug 2591: adaptation_access does not work

An access checklist required for each service set, so we need only one
AccessRule object for each adaptation service set
This patch:
  - When parses a adaptation_access line checks if an AccessRule object exist
for the service set and if yes append the access checklist to this object else
creates a new AccessRule object for this service set
  - The AccessRule constructor takes as argument now the reference service set
name (groupId)
  - The new Adaptation::FindRuleByGroupId method created. This method returns
the AccessRule object for a service set using its name (groupId)