Add basic store object

src/main/java/net/runelite/cache/fs/DataFile.java

@@ -15,12 +15,14 @@ public class DataFile implements Closeable
 	
 	private static final int SECTOR_SIZE = 520;
 	
+	private final Store store;
 	private final int datafileId;
 	private final RandomAccessFile dat;
 	private final byte[] readCachedBuffer = new byte[SECTOR_SIZE];
 	
-	public DataFile(int id, File file) throws FileNotFoundException
+	public DataFile(Store store, int id, File file) throws FileNotFoundException
 	{
+		this.store = store;
 		this.datafileId = id;
 		dat = new RandomAccessFile(file, "rw");
 	}

src/main/java/net/runelite/cache/fs/IndexFile.java

@@ -12,12 +12,14 @@ public class IndexFile
 	private static final Logger logger = LoggerFactory.getLogger(IndexFile.class);
 	private static final int INDEX_ENTRY_LEN = 6;
 	
-	private int indexFileId;
-	private RandomAccessFile idx;
+	private final Store store;
+	private final int indexFileId;
+	private final RandomAccessFile idx;
 	private final byte[] buffer = new byte[6];
 	
-	public IndexFile(int indexFileId, File file) throws FileNotFoundException
+	public IndexFile(Store store, int indexFileId, File file) throws FileNotFoundException
 	{
+		this.store = store;
 		this.indexFileId = indexFileId;
 		this.idx = new RandomAccessFile(file, "rw");
 	}

src/main/java/net/runelite/cache/fs/Store.java

@@ -0,0 +1,5 @@
+package net.runelite.cache.fs;
+
+public class Store
+{
+}