ATR-20692: Addition of protection against dummy primary vertex from upstream
Description: Addition in the b-jet code of a protection in the cases in which the input vertex container from upstream does not contain a valid primary vertex. The code will not return a StatusCode::FAILURE, but it will print a DEBUG message and a dummy vertex will be used and attached to navigation.
However, the Et Hypo Tool has been modified in order to check the validity of the input vertex. In case it is not a valid primary vertex none of the output decisions will pass the trigger selection, thus stopping the execution of the b-jet chain.
JIRA: ATR-20692