Allow disabling of AODAAC service to prevent accidental invocation of ex...

This change prevents test code from accidentally making calls to the AODAAC application. If you execute code in the test environment that would normally make a call to the AODAAC application it will now result in a exception. If you are testing code that normally makes a call to the AODAAC service (in the Portal app) you will need to mock the service or method to return whatever values are appropriate for your test (as you would usually do).