AthenaConfiguration: add flag to configure event timeout

Add Exec.EventTimeOut flags to configure the per-event timeout on the master sequence.

Closes ATEAM-981.

Control/AthenaConfiguration/python/AllConfigFlags.py

@@ -29,6 +29,7 @@ def initConfigFlags():
     acf.addFlag('Exec.DebugStage', '', help='attach debugger at stage: conf, init, exec, fini')
     acf.addFlag('Exec.Interactive', "", help='interactive prompt at stage: init, exec')
     acf.addFlag('Exec.FPE', 0, help='FPE check mode: -2 (no FPE check), -1 (abort with core-dump), 0 (FPE Auditor w/o stack-tace) , >0 (number of stack-traces printed by the job)')
+    acf.addFlag('Exec.EventTimeOut', 0, help='per-event timeout (in ns) after which the job is aborted (0 means no timeout)')
 
     #Custom messaging for components, see Utils.setupLoggingLevels
     acf.addFlag('Exec.VerboseMessageComponents', [], help='verbose output for listed components (wildcards)')