Reduces visibility of internal fields/methods

Reduces the visibility of all fields to private and create setters/getters
when necessary. Exceptions are fields with GuiSync as these need to be
public.

Reduces the visibility of internal methods to private/protected/default when possible.

src/main/java/appeng/util/prioitylist/DefaultPriorityList.java

@@ -28,7 +28,7 @@ import appeng.api.storage.data.IAEStack;
 public class DefaultPriorityList<T extends IAEStack<T>> implements IPartitionList<T>
 {
 
-	static final List NULL_LIST = new ArrayList();
+	private static final List NULL_LIST = new ArrayList();
 
 	@Override
 	public boolean isListed( final T input )

src/main/java/appeng/util/prioitylist/FuzzyPriorityList.java

@@ -29,8 +29,8 @@ import appeng.api.storage.data.IItemList;
 public class FuzzyPriorityList<T extends IAEStack<T>> implements IPartitionList<T>
 {
 
-	final IItemList<T> list;
-	final FuzzyMode mode;
+	private final IItemList<T> list;
+	private final FuzzyMode mode;
 
 	public FuzzyPriorityList( final IItemList<T> in, final FuzzyMode mode )
 	{

src/main/java/appeng/util/prioitylist/PrecisePriorityList.java

@@ -26,7 +26,7 @@ import appeng.api.storage.data.IItemList;
 public class PrecisePriorityList<T extends IAEStack<T>> implements IPartitionList<T>
 {
 
-	final IItemList<T> list;
+	private final IItemList<T> list;
 
 	public PrecisePriorityList( final IItemList<T> in )
 	{