Migrate tracker local reconstruction and pixel tracking to Tasks (bac…

…kport cms-sw#25163) (#202)

Backport "Migrate tracker local reconstruction and pixel tracking to Tasks" (cms-sw#25163) to the Patatrack branch:
  - migrate RecoLocalTracker_cff to Tasks;
  - migrate RecoPixelVertexing_cff to Tasks;
  - keeping sequences to avoid massive migration (for now).

RecoPixelVertexing/Configuration/python/RecoPixelVertexing_cff.py

@@ -6,4 +6,5 @@
 #
 #from RecoPixelVertexing.PixelVertexFinding.PixelVertexes_cff import *
 from RecoVertex.PrimaryVertexProducer.OfflinePixel3DPrimaryVertices_cfi import *
-recopixelvertexing = cms.Sequence(pixelTracksSequence*pixelVertices)
+recopixelvertexingTask = cms.Task(pixelTracksTask,pixelVertices)
+recopixelvertexing = cms.Sequence(recopixelvertexingTask)