Completes OPEN-3817 Validate model feature names, class names better

[gustavocidornelas]

• Adds classNames and featureNames consistency validations between training, validation, and model (when provided).
• The rules are basically checks for intersection and subsets, with special care for classNames, where the order of the lists' items matter.

[linear]

OPEN-3817 Validate model feature names, class names better

we should also validate that the model’s feature names and class names are a subset of the provided training & validation set’s features names & class names. We should probably also validate that the val set’s feature names & class names are a subset of the training set’s