WIP: make scheduler state available in eventcontext and add timing feature

OBSOLETE: to be split into smaller MRs

made the node + algorithm states available in the evtcontext to be able to access the information in a monitoring algorithm. Also a prototype "decreportswriter" will be introduced using the information in the evtcontext extension.

added a feature to define when to start and stop the timing process + some on-the-fly minichanges.

@graven @chasse FYI

Hlt/HLTScheduler/options/benchmark_HLTControlFlowMgr.py

@@ -39,6 +39,9 @@ if useDummies:
 else: 
     baseUnit = CPUCruncher
 
+HLTControlFlowMgr().StartTimeAtEvt = 1000
+HLTControlFlowMgr().StopTimeAfterEvt = 100000
+
 
 #concurrency conf
 HLTControlFlowMgr().ThreadPoolSize = threads