Added support for the legacy encoding of binary classification models

PMML schema version 4.0 moved the alternateBinaryTargetCategory
attribute of the SupportVectorMachineModel element to the
alternateTargetCategory attribute of the sole SupportVectorMachine
child element. In spite of great structural similarity, the legacy
encoding and the current encoding need to be handled differently during
evaluation.
Moved PMMLObjectUtil utility class from 'pmml-evaluator' module to 'pmml-manager' module