Fixed WireFitQlearn's memory leak issue

include/WireFitQLearn.h

@@ -83,6 +83,8 @@ class WireFitQLearn : public Learner {
   /** Stores this model in a stream. */
   void store(std::ofstream *output);
 
+  ~WireFitQLearn();
+
 protected:
   // Feeds the state into the network, parses to the output of the network into wire form, and outputs these wires
   std::vector<Wire> getWires(State state);

src/WireFitQLearn.cpp

@@ -51,6 +51,11 @@ WireFitQLearn::WireFitQLearn(std::ifstream *input) {
 
 }
 
+WireFitQLearn::~WireFitQLearn() {
+    delete modelNet;
+    delete network;
+}
+
 Action WireFitQLearn::chooseBestAction(State currentState) {
   std::vector<double> action = bestAction(currentState);
   lastAction = action;
@@ -105,6 +110,7 @@ void WireFitQLearn::applyReinforcementToLastAction(double reward, State newState
 }
 
 void WireFitQLearn::reset() {
+  delete network;
   network = new net::NeuralNet(modelNet);
   network->randomizeWeights();
   std::cout << "number: " << network->numberOfHiddenNeurons() << "\n";