[ISPN-4645] Many XSD default values do not match the defaults from the
corresponding configuration builder

Updated core XSD for state transfer chunk size property default value
Remove unused imports
Make some classes final
Fix a TODO in ProtobufWrapperIndexingTest
Replace deprecated usages of Lucene version constants (Version.LUCENE_4_10_1 -> Version.LATEST)
Add test for protobuf marshalling of primitives with compat mode enabled
ISPN-5004 Enhance ProtobufMetadataManagerMBean

* Move ProtobufMetadataManagerMBean to infinispan-remote-query-client module, unfortunatelly could not
  keep the same package so a deprecated copy of ProtobufMetadataManagerMBean exists in previous location
  too for backward compatibility

* Rename method: displayProtofile( ) --> getProtofile( )

* Add methods getProtofileNames, getProtofile, getFilesWithErrors, getFileErrors