PWGPP-592 - adding getter to check content of pileup properties
PWGPP-592 - adding getter to check content of pileup properties

miranov25/AliRoot,alisw/AliRoot,coppedis/AliRoot,alisw/AliRoot,alisw/AliRoot,coppedis/AliRoot,coppedis/AliRoot,alisw/AliRoot,miranov25/AliRoot,miranov25/AliRoot,miranov25/AliRoot,coppedis/AliRoot,miranov25/AliRoot,miranov25/AliRoot,miranov25/AliRoot,coppedis/AliRoot,alisw/AliRoot,alisw/AliRoot,alisw/AliRoot,alisw/AliRoot,miranov25/AliRoot,coppedis/AliRoot,coppedis/AliRoot,coppedis/AliRoot