#79 Add local storage data model

frontend/core/src/com/gameware/game/models/LocalStorage.java

+package com.gameware.game.models;
+
+public class LocalStorage {
+//    private Player player;
+    private String _id; //playerId
+    private Boolean musicOn;
+    private Boolean soundEffects;
+    private Boolean includeFin;
+
+    public LocalStorage() {
+    }
+
+    public LocalStorage(String _id, Boolean musicOn, Boolean soundEffects, Boolean includeFin) {
+        this._id = _id;
+        this.musicOn = musicOn;
+        this.soundEffects = soundEffects;
+        this.includeFin = includeFin;
+    }
+
+    public String get_id() {
+        return _id;
+    }
+
+    public Boolean getMusicOn() {
+        return musicOn;
+    }
+
+    public Boolean getSoundEffects() {
+        return soundEffects;
+    }
+
+    public Boolean getIncludeFin() {
+        return includeFin;
+    }
+}