Get data for generic URI

Added events and event handlers in policy manager to
receive from PZP data required to manage generic URI

Jira-issue: WP-1174
Merge pull request #48 from ccameroni/WP-1174-get-data-for-generic-uri

Get data for generic URI
Put calls to PZP inside a try/catch to avoid crash

Jira issue: WP-1174
Merge pull request #49 from smonteleone/WP-1174-get-data-for-generic-uri

Put calls to PZP inside a try/catch to avoid crash