implement heal command

src/main/java/emu/lunarcore/command/commands/HealCommand.java

@@ -0,0 +1,33 @@
+package emu.lunarcore.command.commands;
+
+import emu.lunarcore.LunarCore;
+import emu.lunarcore.command.Command;
+import emu.lunarcore.command.CommandArgs;
+import emu.lunarcore.command.CommandHandler;
+import emu.lunarcore.server.packet.send.PacketSyncLineupNotify;
+import emu.lunarcore.game.player.lineup.LineupManager;
+import emu.lunarcore.game.player.lineup.PlayerLineup;
+import emu.lunarcore.game.player.Player;
+
+@Command(label = "heal", permission = "player.heal", desc = "/heal. Heals your avatars.")
+public class HealCommand implements CommandHandler {
+
+    @Override
+    public void execute(Player sender, CommandArgs args) {
+
+        LineupManager lineupManager = sender.getLineupManager();
+        PlayerLineup lineup = lineupManager.getLineupByIndex(lineupManager.getCurrentIndex());  
+        
+        lineup.forEachAvatar(avatar -> {
+            avatar.setCurrentHp(lineup, 10000);
+        });
+
+        lineup.save();
+
+        sender.getScene().syncLineup();
+        sender.sendPacket(new PacketSyncLineupNotify(lineup));
+
+        this.sendMessage(sender, "Healed all avatars.");
+    }
+
+}