Service Desk overrides Tempo (and other addons) custom permissions

JSD is currently overriding the Tempo View all worklogs custom permission for users that aren't agents. This means that non agents are unable to view this panel in JSD.

This bug report is about preventing Service Desk from overriding Tempo permissions (and possible add-on permissions), so that it is no longer required to give JIRA users application access to Service Desk (and give them a Service Desk license).