[feature] 3D Maze game (#211)

### 3D maze game using threeJs and MapGL
. A 3D Maze Game made using ThreeJs and WebGL
. Explore the 3D experience
. You can move and operate the fpp by directional arrows.
. Player should reach the destination using map.


![ss1](https://user-images.githubusercontent.com/64016811/119042625-b7ef0680-b9d5-11eb-896a-24f94212b896.jpg)


![ss2](https://user-images.githubusercontent.com/64016811/119042632-b9b8ca00-b9d5-11eb-95a1-6b42d962dff2.jpg)

3D_maze_Game/README.md

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+### 3D-Maze-Game
+. A 3D Maze Game made using ThreeJs and WebGL
+. Explore the 3D experience
+. You can move and operate the fpp by directional arrows.
+. Player should reach the destination using map.
+
+![ss1](https://user-images.githubusercontent.com/64016811/119042625-b7ef0680-b9d5-11eb-896a-24f94212b896.jpg)
+
+![ss2](https://user-images.githubusercontent.com/64016811/119042632-b9b8ca00-b9d5-11eb-95a1-6b42d962dff2.jpg)

3D_maze_Game/assets/css/style.css

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+body {
+	margin: 0;
+}
+
+#canvasContainer {
+	position: relative;
+}
+
+/* JOYPAD */
+#joypad {
+	position: absolute;
+	bottom: 0;
+	right: 0;
+	width: 145px;
+}
+
+#joypad .top {
+	text-align: center;
+	width: inherit;
+}
+
+#joypad .bottom {
+	width: inherit;
+}

3D_maze_Game/assets/js/Demonixis.GameHelper.js

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+var Demonixis = window.Demonixis || {};
+Demonixis.GameHelper = Demonixis.GameHelper || {};
+
+Demonixis.GameHelper.LevelHelper = function(start, end) {
+    this.current = start || 1;
+    this.next = this.current + 1;
+    this.count = end || 5;
+    this.isFinished = false;
+
+    this.getNext = function() {
+        if (this.next > this.count) {
+            this.current = 1;
+            this.next = 2;
+            this.isFinished = true;
+        } else {
+            this.current = this.next;
+            this.next++;
+        }
+
+        return this.current;
+    }
+};
+
+Demonixis.GameHelper.CameraHelper = function(camera) {
+    this.translation = 5;
+    this.rotation = 0.035;
+    this.origin = {
+        position: {
+            x: 0,
+            y: 0,
+            z: 0,
+            mapX: 0,
+            mapY: 0,
+            mapZ: 0
+        },
+        x: 0,
+        y: 0,
+        z: 0
+    };
+
+    this.camera = camera;
+};