- the main change is adding a new variable to the path 2 for accessing the policies in the Policy service
- some minor changes on the error messages
- adding new field on the policy db

Also there is a bug for Task and Invohub service due to the new changes.
The failing tests are marked as @WIP.

Signed-off-by: Georgi Michev <georgi.michev@vereign.com>