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/NPCTalkHandler.java

@@ -37,12 +37,12 @@ public final class NPCTalkHandler extends AbstractMaplePacketHandler {
     @Override
     public final void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {
         if (!c.getPlayer().isAlive()) {
-            c.announce(PacketCreator.enableActions());
+            c.sendPacket(PacketCreator.enableActions());
             return;
         }
         
         if(currentServerTime() - c.getPlayer().getNpcCooldown() < YamlConfig.config.server.BLOCK_NPC_RACE_CONDT) {
-            c.announce(PacketCreator.enableActions());
+            c.sendPacket(PacketCreator.enableActions());
             return;
         }
         
@@ -56,7 +56,7 @@ public final class NPCTalkHandler extends AbstractMaplePacketHandler {
                 DueyProcessor.dueySendTalk(c, false);
             } else {
                 if (c.getCM() != null || c.getQM() != null) {
-                    c.announce(PacketCreator.enableActions());
+                    c.sendPacket(PacketCreator.enableActions());
                     return;
                 }
                 
@@ -74,7 +74,7 @@ public final class NPCTalkHandler extends AbstractMaplePacketHandler {
                             FilePrinter.printError(FilePrinter.NPC_UNCODED, "NPC " + npc.getName() + "(" + npc.getId() + ") is not coded.");
                             return;
                         } else if (c.getPlayer().getShop() != null) {
-                            c.announce(PacketCreator.enableActions());
+                            c.sendPacket(PacketCreator.enableActions());
                             return;
                         }