constructor(layerName, index, type, bias, output) {
    this.layerName = layerName;
    this.index = index;
    this.type = type;
    this.bias = bias;
    this.output = output;

    // Weights are stored in the links
    this.inputLinks = [];
    this.outputLinks = [];
  }
Class structure for each neuron node.

@param {string} layerName Name of the node's layer.
@param {int} index Index of this node in its layer.
@param {string} type Node type {input, conv, pool, relu, fc}. 
@param {number} bias The bias assocated to this node.
@param {number[]} output Output of this node.