Update expected memory formula (64 bit VMs need more memory)

h2/src/main/org/h2/value/ValueLob.java

@@ -760,7 +760,7 @@ public class ValueLob extends Value {
 
     public int getMemory() {
         if (small != null) {
-            return small.length + 32;
+            return small.length + 64;
         }
         return 128;
     }

h2/src/main/org/h2/value/ValueLobDb.java

@@ -334,7 +334,7 @@ public class ValueLobDb extends Value implements Value.ValueClob, Value.ValueBlo
 
     public int getMemory() {
         if (small != null) {
-            return small.length + 32;
+            return small.length + 64;
         }
         return 128;
     }