Added loadChunk, unloadChunk and unloadChunkRequest.

By: Dinnerbone <dinnerbone@dinnerbone.com>

paper-server/src/main/java/org/bukkit/craftbukkit/CraftWorld.java

@@ -75,7 +75,31 @@ public class CraftWorld implements World {
     }
 
     public void loadChunk(int x, int z) {
-         world.A.d(x, z);
+        loadChunk(x, z, true);
+    }
+
+    public boolean loadChunk(int x, int z, boolean generate) {
+        return world.A.loadChunk(x, z, generate) != null;
+    }
+
+    public boolean unloadChunk(int x, int z) {
+        return unloadChunk(x, z, true);
+    }
+
+    public boolean unloadChunk(int x, int z, boolean save) {
+        return unloadChunk(x, z, save, false);
+    }
+
+    public boolean unloadChunk(int x, int z, boolean save, boolean safe) {
+        return world.A.unloadChunk(x, z, save, safe);
+    }
+    
+    public boolean unloadChunkRequest(int x, int z) {
+        return unloadChunkRequest(x, z, true);
+    }
+    
+    public boolean unloadChunkRequest(int x, int z, boolean safe) {
+        return world.A.unloadChunkRequest(x, z, safe);
     }
 
     public boolean isChunkLoaded(Chunk chunk) {