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/block/misc/BlockInscriber.java

@@ -46,7 +46,7 @@ public class BlockInscriber extends AEBaseTileBlock
 
 		this.setTileEntity( TileInscriber.class );
 		this.setLightOpacity( 2 );
-		this.isFullSize = this.isOpaque = false;
+		this.setFullSize( this.setOpaque( false ) );
 		this.setFeature( EnumSet.of( AEFeature.Inscriber ) );
 	}