Save version chunks changed to 4-byte lengths

core/src/mindustry/io/versions/Save8.java

@@ -1,9 +1,7 @@
 package mindustry.io.versions;
 
-import mindustry.io.*;
-
 /** Adds support for the marker binary data region. The code is unchanged here, because it was easier to add a >= 8 check in the SaveVersion class itself. */
-public class Save8 extends SaveVersion{
+public class Save8 extends ShortChunkSaveVersion{
 
     public Save8(){
         super(8);