working castling on console + app to play either mode

app/src/main/java/chess/App.java

@@ -0,0 +1,26 @@
+package chess;
+
+import chess.view.consolerender.Colors;
+
+import java.util.Scanner;
+
+public class App {
+    public static void main(String[] args) {
+        System.out.println(Colors.RED + "Credits: Grenier Lilas, Pribylski Simon." + Colors.RESET);
+        System.out.println("""
+                Pick the version to use:
+                    1 - Console
+                    2 - Window.""");
+        switch (new Scanner(System.in).nextLine()) {
+            case "1", "Console", "console":
+                ConsoleMain.main(args);
+                break;
+            case "2", "Window", "window":
+                SwingMain.main(args);
+                break;
+            default:
+                System.out.println("Invalid input");
+                break;
+        }
+    }
+}