ClientCache renamed to ClientCacheHandler, moved ImageData into the client package.

src/main/java/noppes/npcs/client/ClientCacheHandler.java

@@ -0,0 +1,17 @@
+package noppes.npcs.client;
+
+import noppes.npcs.client.renderer.ImageData;
+import noppes.npcs.util.CacheHashMap;
+
+public class ClientCacheHandler {
+    private static final CacheHashMap<String, CacheHashMap.CachedObject<ImageData>> imageDataCache = new CacheHashMap<>(10*60*1000);
+
+    public static ImageData getImageData(String directory) {
+        synchronized (imageDataCache) {
+            if (!imageDataCache.containsKey(directory)) {
+                imageDataCache.put(directory, new CacheHashMap.CachedObject<>(new ImageData(directory)));
+            }
+            return imageDataCache.get(directory).getObject();
+        }
+    }
+}