All packet creating methods now create Packet instead of byte[]

This commit got way too big...
- Remove deprecated methods for sending packets
- Favor OutPacket & Packet over MaplePacketLittleEndianWriter, LittleEndianWriter, and byte array
- Split up some packet creating methods into separate classes

src/main/java/net/server/channel/handlers/InventoryMergeHandler.java

@@ -43,7 +43,7 @@ public final class InventoryMergeHandler extends AbstractMaplePacketHandler {
         chr.getAutobanManager().setTimestamp(2, Server.getInstance().getCurrentTimestamp(), 4);
         
         if(!YamlConfig.config.server.USE_ITEM_SORT) {
-            c.announce(PacketCreator.enableActions());
+            c.sendPacket(PacketCreator.enableActions());
             return;
 	}
         
@@ -106,7 +106,7 @@ public final class InventoryMergeHandler extends AbstractMaplePacketHandler {
             inventory.unlockInventory();
         }
         
-        c.announce(PacketCreator.finishedSort(inventoryType.getType()));
-        c.announce(PacketCreator.enableActions());
+        c.sendPacket(PacketCreator.finishedSort(inventoryType.getType()));
+        c.sendPacket(PacketCreator.enableActions());
     }
 }