Align from 5 point landmarks + allFacesMtcnn

Mtcnn

param mappings for remaining nets + make face detection and recognition nets extend NeuralNetwork

added describeWithNets test utility, which handles net creation and disposing of net params for the testbench

NeuralNetwork base class + trainable

added NeuralNetwork base class which provides some common functionality, such as making networks trainable

face recognition net now works with batch inputs

Some fixes