Add trainable

Runtime/Scripts/Core/Synapse.cs

@@ -108,11 +108,13 @@ namespace NanoBrain {
             public string clusterName;
             public string neuronName;
             public float weight;
+            public bool trainable;
 
         public SynapseData(Synapse synapse) {
             this.clusterName = synapse.neuron.parent.name;
             this.neuronName = synapse.neuron.name;
             this.weight = synapse.weight;
+            this.trainable = synapse.trainable;
         }
     }
 }