More specific error when rejecting assertion due to time issues

[thijskh]

When the received assertion is not valid, EB logs

Caught Exception "EngineBlock_Corto_Module_Bindings_VerificationException":"Received an assertion that has expired. Check clock synchronization on IdP and SP.", redirecting to route "authentication_feedback_verification_failed"

The exception description is very useful because this is a common error. However, EB only presents the abstract error "Invalid Identity Provider Response" (related to the VerificationException). It would be helpful if EB could be explicit to the user that it rejects the assertion due to a clock issue.

[thijskh]

Done in 5.10