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/integration/modules/NEIHelpers/TerminalCraftingSlotFinder.java

@@ -37,8 +37,8 @@ public class TerminalCraftingSlotFinder implements IStackPositioner
 		{
 			if( ps != null )
 			{
-				ps.relx += GuiMEMonitorable.CraftingGridOffsetX;
-				ps.rely += GuiMEMonitorable.CraftingGridOffsetY;
+				ps.relx += GuiMEMonitorable.craftingGridOffsetX;
+				ps.rely += GuiMEMonitorable.craftingGridOffsetY;
 			}
 		}
 		return a;