Add NoteService to handle note operations

NoteService should be the only class with access to NoteDao;
nowhere else should NoteDao be accessed directly.

Channel dependencies are static in PacketProcessor, for now.
Ideally they would be injected in the constructor,
but since the constructor is private and I don't want to open
up that can of worms, I'll leave it like this.
At the very least, now we have a way of injecting services into
the handlers. This will make further restructuring way easier.

src/main/java/client/Character.java

@@ -41,9 +41,6 @@ import constants.id.MapId;
 import constants.id.MobId;
 import constants.inventory.ItemConstants;
 import constants.skills.*;
-import database.DaoException;
-import database.NoteDao;
-import model.Note;
 import net.packet.Packet;
 import net.server.PlayerBuffValueHolder;
 import net.server.PlayerCoolDownValueHolder;
@@ -9627,18 +9624,6 @@ public class Character extends AbstractCharacterObject {
         client.announceHint(msg, length);
     }
 
-    public void showNote() {
-        final List<Note> notes;
-        try {
-            notes = NoteDao.findAllByTo(name);
-        } catch (DaoException e) {
-            log.error("Failed to find notes for chr name {}", name, e);
-            return;
-        }
-
-        sendPacket(PacketCreator.showNotes(notes));
-    }
-
     public void silentGiveBuffs(List<Pair<Long, PlayerBuffValueHolder>> buffs) {
         for (Pair<Long, PlayerBuffValueHolder> mbsv : buffs) {
             PlayerBuffValueHolder mbsvh = mbsv.getRight();