it avoids spurious test failures on busy Gitlab-CI runners

detect scheduling stalls event-wise, and don't force Avalanche Scheduler to self-deactivate upon a failure/stall (the latter is still handled by HiveSlimEventLoopMgr)

add support for multiple CF parents to topological execution flow tracer, and verbose/error messages cleanup in PRG

Gitlab CI authored 6 years ago and Hadrien Benjamin Grasland committed 6 years ago

patch generated by https://gitlab.cern.ch/hgraslan/Gaudi/-/jobs/1253552

https://coverity.cern.ch/reports.htm#v13572/p10041/fileInstanceId=763879735&defectInstanceId=396360581&mergedDefectId=98201

Change

operator<<( std::ostream& s, AlgsExecutionStates::State x )

to convert to string instead of integer. The latter was nowhere used.
Use the operator in EntityState to avoid the duplicate enum-to-string
hard-coding.