Add: RMI

src/main/java/it/polimi/ingsw/gc14/Model/PlayableCard.java

@@ -1,6 +1,8 @@
 package it.polimi.ingsw.gc14.Model;
 
-public abstract class PlayableCard {
+import java.io.Serializable;
+
+public abstract class PlayableCard implements Serializable {
     private int Era;
     public int getEra(){
         return Era;