Allow clients to explicitly set the sequnece for LumiBlockMuWriter algorithm

Added sequence argument to the LumiBlockMuWriterDefault() function. If the argument
is set, then this sequence is used for LumiBlockMuWriter. Otherwise the appropriate
sequence is chosen by the LumiBlockMuWriterDefault() function itself.

Addresses ATR-22141

LumiBlock/LumiBlockComps/python/LumiBlockMuWriterDefault.py

@@ -10,13 +10,13 @@ from AthenaConfiguration.ComponentFactory import CompFactory
 from AthenaCommon.BeamFlags import jobproperties
 
 
-def LumiBlockMuWriterDefault (name = 'LumiBlockMuWriter'):
+def LumiBlockMuWriterDefault (name = 'LumiBlockMuWriter', sequence = None):
     from AthenaCommon.AlgSequence import AthSequencer
     from AthenaCommon.AlgSequence import AlgSequence
 
     condSeq = AthSequencer ('AthCondSeq')
     topSequence = AlgSequence()
-    if hasattr (condSeq, name) or hasattr (topSequence, name):
+    if (sequence and hasattr (sequence, name)) or hasattr (condSeq, name) or hasattr (topSequence, name):
         return
 
     LumiBlockMuWriter = CompFactory.LumiBlockMuWriter # LumiBlockComps
@@ -40,10 +40,13 @@ def LumiBlockMuWriterDefault (name = 'LumiBlockMuWriter'):
 
     # FIXME: If EventInfoCnvAlg is in topSequence, then this needs to come
     # after it.  Otherwise, schedule to condSeq so we'll be run early.
-    if cnvalg and cnvseq is topSequence:
-        topSequence += alg
+    if sequence:
+        sequence += alg
     else:
-        condSeq += alg
+        if cnvalg and cnvseq is topSequence:
+            topSequence += alg
+        else:
+            condSeq += alg
 
     from AthenaCommon.GlobalFlags  import globalflags
     from RecExConfig.ObjKeyStore import objKeyStore