Done with activation softmax backwards

include/neural_network/layer/layer.hpp

@@ -56,6 +56,14 @@ namespace panic{
  */
 struct layer{
 
+     /**
+     * @brief Emphty output matrix to store layer input
+     *
+     * Output shape:
+     * samples x neuron_count
+     */
+    panic::tensor::real_matrix inputs;
+
 	 /**
      * @brief Emphty output matrix to store layer output
      *
@@ -64,6 +72,12 @@ struct layer{
      */
 	panic::tensor::real_matrix outputs;
 
+     /**
+     * @brief Emphty matrix to store output for backward pass
+     *
+     */
+    panic::tensor::real_matrix dinputs;
+
     /**
      * @brief Default de-constructor
      *