Sigmoid Cross-Entropy Loss Layer

• Layer type: SigmoidCrossEntropyLoss
• Doxygen Documentation
• Header: ./include/caffe/layers/sigmoid_cross_entropy_loss_layer.hpp
• CPU implementation: ./src/caffe/layers/sigmoid_cross_entropy_loss_layer.cpp
• CUDA GPU implementation: ./src/caffe/layers/sigmoid_cross_entropy_loss_layer.cu

To-do.