Implement map marking features

Teleport still exists on fish hook mark.
Added mapMark-related protos.
Map marking data is stored in players collection.

src/main/java/emu/grasscutter/game/managers/MapMarkManager/MapMarksManager.java

@@ -0,0 +1,61 @@
+package emu.grasscutter.game.managers.MapMarkManager;
+
+import dev.morphia.annotations.Entity;
+import emu.grasscutter.utils.Position;
+import java.util.HashMap;
+
+@Entity
+public class MapMarksManager {
+
+    static final int mapMarkMaxCount = 150;
+    private HashMap<String, MapMark> mapMarks;
+
+    public MapMarksManager() {
+        mapMarks = new HashMap<String, MapMark>();
+    }
+
+    public MapMarksManager(HashMap<String, MapMark> mapMarks) {
+        this.mapMarks = mapMarks;
+    }
+
+    public HashMap<String, MapMark> getAllMapMarks() {
+        return mapMarks;
+    }
+
+    public MapMark getMapMark(Position position) {
+        String key = getMapMarkKey(position);
+        if (mapMarks.containsKey(key)) {
+            return mapMarks.get(key);
+        } else {
+            return null;
+        }
+    }
+
+    public String getMapMarkKey(Position position) {
+        return "x" + (int)position.getX()+ "z" + (int)position.getZ();
+    }
+
+    public boolean removeMapMark(Position position) {
+        String key = getMapMarkKey(position);
+        if (mapMarks.containsKey(key)) {
+            mapMarks.remove(key);
+            return true;
+        }
+        return false;
+    }
+
+    public boolean addMapMark(MapMark mapMark) {
+        if (mapMarks.size() < mapMarkMaxCount) {
+            if (!mapMarks.containsKey(mapMark.getPosition())) {
+                mapMarks.put(getMapMarkKey(mapMark.getPosition()), mapMark);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public void setMapMarks(HashMap<String, MapMark> mapMarks) {
+        this.mapMarks = mapMarks;
+    }
+
+}