Initialize project structure

src/main/java/me/taako/swt/prog2/controller/PuzzleController.java

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+package me.taako.swt.prog2.controller;
+
+public class PuzzleController {
+}

src/main/java/me/taako/swt/prog2/model/PuzzleModel.java

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+package me.taako.swt.prog2.model;
+
+public class PuzzleModel {
+}

src/main/java/me/taako/swt/prog2/view/PuzzleView.java

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+package me.taako.swt.prog2.view;
+
+public class PuzzleView {
+}