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/UseSummonBagHandler.java

@@ -42,7 +42,7 @@ public final class UseSummonBagHandler extends AbstractMaplePacketHandler {
     public final void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {
         //[4A 00][6C 4C F2 02][02 00][63 0B 20 00]
         if (!c.getPlayer().isAlive()) {
-            c.announce(PacketCreator.enableActions());
+            c.sendPacket(PacketCreator.enableActions());
             return;
         }
         slea.readInt();
@@ -58,6 +58,6 @@ public final class UseSummonBagHandler extends AbstractMaplePacketHandler {
                 }
             }
         }
-        c.announce(PacketCreator.enableActions());
+        c.sendPacket(PacketCreator.enableActions());
     }
 }