add assest store tool and add the unitypackage and the tutorial markdown

Author: tim-hub

Assets/AssetStoreTools/Editor/AssetStoreTools.dll

@@ -0,0 +1,66 @@
+# How To Make a Simple Joystick
+## The One In Stand Assests from Unity3D
+![joystick](https://i.imgsafe.org/a26ae3b.png)
+This prefab is with the move button and jump button.  And there is other 4 prefabs in the package too.
+![4 prefabs](https://i.imgsafe.org/3a8a2a1.png)
+
+### How To Get It?
+	Assets > Import Package > CrossPlatformInput
+
+### How To Use It?
+1. Add the prefab to the scene;
+2. Get the axis like the original Input Manager.
+
+**i.e.**
+
+	using UnityStandardAssets.CrossPlatformInput;
+    ...
+    //just like using Input Manager
+    x = CrossPlatformInputManager.GetAxis("Horizontal");
+    y = CrossPlatformInputManager.GetAxis("Vertical");
+    ...
+    CrossPlatformInputManager.GetButtonDown("Jump");
+
+
+**P.S.**
+- The cross platform input is from the unity3d standard asses, make sure that you have already install it.
+- More About It, Please Read CrossPlatformInputGuidelines in the package folder.
+
+## [Simple Joystick (Move Rotate Fire)](https://www.assetstore.unity3d.com/#!/content/59691)
+This is a different joystick, which support movement rotation and fire/jump input. 
+![simple](https://lh3.googleusercontent.com/fU1DUGyP_QRbPKgu8qmuAM4737jHDWCg7CPE5qu-8eHE7nVvsuiEj2WrxXBjLv_efIc=h900)
+
+And it will release on assest store days later.
+
+### How To
+1. Download And Import The Package
+2. Drag and drop the `ControlCanvas` to the scene
+3. Add `EventSystem` to the scene too
+4. It is done (There is a sample scene in the package, you can double click to open it.)
+
+#### Download And Import The Package
+[Simple Joystick on Assest Store]((https://www.assetstore.unity3d.com/#!/content/59691), the assest package will be released days later.
+
+#### Drag and drop
+![drag drop](https://i.imgsafe.org/40a618e.png)
+
+#### Add EventSystem
+![event](https://i.imgsafe.org/9149fa4.png)
+And it is ok to keep the default parameters.
+
+#### Use the 3 static classes to get Axis and Fire
+- JoystickMove.instance. (H and V)
+- JoystickRotate.instance. (H and V)
+- JoystickFire.instance.Fire
+
+##### Example
+	void Update () {
+		transform.Translate(new Vector3(JoystickMove.instance.H,0f,JoystickMove.instance.V)*speed*Time.deltaTime);
+
+
+		transform.LookAt(transform.position+new Vector3(JoystickRotate.instance.H,0f,JoystickRotate.instance.V));
+
+		if(JoystickFire.instance.Fire){
+			Debug.Log("fire");
+		}
+	}// this is in the sample scene `CubeControl`