Level/exp on all equips + Player stats overhaul + Chair handler patch

Implemented a massive overhaul on Character.wz, adding in equipment level-related nodes in order to make equipments level/EXP info available for anyone to check.
Implemented a major overhaul on the player stat management throughout the source, properly encapsulating and concurrency protecting it's mechanics.
Reviewed several MoveLifeHandler aspects, some of them trying to prevent mobs from falling from footholds in certain circumstances.
Fixed MP Recovery instant killing players when they run out of HP to use.
Fixed some chairs arbitrarily disconnecting players upon HP/MP recovery.
Fixed Puppets sticking to maps in certain scenarios.
Cached data and added concurrency protection for EXP gain on equipments.
Reworked Chair Mastery skill, now with recovering amounts based on a player's base HP/MP pool.
Fixed several deadlock issues revolving rate coupons and character inventory.
Improved overall autopot handler performance.
Reworked door bosses (such as Crocell), now spawning each 3 hours instead of upon player's demand.
Fixed alliances not saving rank names on DB at creation time.
Fixed alliances retaining disbanded guild info on DB.
Added Mystic Door support for the Mushroom Castle area.

src/client/command/commands/gm0/GachaCommand.java

@@ -0,0 +1,66 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm0;
+
+import client.command.Command;
+import client.MapleClient;
+import server.MapleItemInformationProvider;
+import server.gachapon.MapleGachapon;
+import tools.MaplePacketCreator;
+
+public class GachaCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleGachapon.Gachapon gacha = null;
+        String search = joinStringFrom(params,0);
+        String gachaName = "";
+        String [] names = {"Henesys", "Ellinia", "Perion", "Kerning City", "Sleepywood", "Mushroom Shrine", "Showa Spa Male", "Showa Spa Female", "New Leaf City", "Nautilus Harbor"};
+        int [] ids = {9100100, 9100101, 9100102, 9100103, 9100104, 9100105, 9100106, 9100107, 9100109, 9100117};
+        for (int i = 0; i < names.length; i++){
+            if (search.equalsIgnoreCase(names[i])){
+                gachaName = names[i];
+                gacha = MapleGachapon.Gachapon.getByNpcId(ids[i]);
+            }
+        }
+        if (gacha == null){
+            c.getPlayer().yellowMessage("Please use @gacha <name> where name corresponds to one of the below:");
+            for (String name : names){
+                c.getPlayer().yellowMessage(name);
+            }
+            return;
+        }
+        String talkStr = "The #b" + gachaName + "#k Gachapon contains the following items.\r\n\r\n";
+        for (int i = 0; i < 2; i++){
+            for (int id : gacha.getItems(i)){
+                talkStr += "-" + MapleItemInformationProvider.getInstance().getName(id) + "\r\n";
+            }
+        }
+        talkStr += "\r\nPlease keep in mind that there are items that are in all gachapons and are not listed here.";
+        c.announce(MaplePacketCreator.getNPCTalk(9010000, (byte) 0, talkStr, "00 00", (byte) 0));
+    }
+}