Add PredictionLoggerEvaluator

[tachyonicClock]

• LearningPerformanceEvaluator is now AutoCloseable to ensure PredictionLoggerEvaluator can flush predictions.
• PredictionLoggerEvaluator can wrap another ClassificationPerformanceEvaluator.
• Removed outputPredictionFile from classification tasks because it is redundant now.
• Ensures all tasks close the evaluators.
• Saves a gzip compressed CSV by default.
• PredictionLoggerEvaluator only supports classification.

Output with probabilities:

true_class,class_prediction,class_probability_0,class_probability_1,
1,0,0.00,0.00,
1,0,0.00,0.00,
0,1,0.00,1.00,
0,1,0.33,0.67,
1,0,0.50,0.50,
0,0,1.00,0.00,

Output without probabilities:

true_class,class_prediction,
1,0,
1,0,
0,1,
0,1,
1,0,
0,0,
1,1,

Some tests fail but I believe these fail on master: