Add: ranking for app

src/game/ranking/main.js

@@ -0,0 +1,13 @@
+/////////////////////////////
+// Main game
+
+const CONTENT_ID = "Ranking";
+
+let game = new Phaser.Game(
+	GAME_SCREEN_SIZE.x, GAME_SCREEN_SIZE.y,
+	Phaser.CANVAS, CONTENT_ID,
+	this, false, false
+);
+
+game.state.add('Ranking', Ranking);
+game.state.start('Ranking');