Add NetUnit save Gen

inc/values/DnaManager.hpp

@@ -12,25 +12,35 @@ enum Liked
   no
 };
 
-struct Unit
+struct UiUnit
 {
   Dna *dna;
   Liked liked;
   int index;
 };
 
+struct NetUnit
+{
+  uint128 hash;
+  uint32_t index;
+  Liked liked;
+};
+
+static_assert(24 == sizeof(NetUnit));
+
 class DnaManager
 {
 public:
   void init();
   void deinit();
-  Unit next();
-  void like(Unit unit);
+  UiUnit next();
+  void like(UiUnit unit);
   int generation;
 
 private:
   void saveData();
   void saveVec();
+  void saveGen();
   uint128 randSeed;
   uint128 id;
   int queued;