Version 2.2RC3 - More events, better skeleton poser, serialization fixes

Changes for v2.2RC3:

 * Minor Breaking Change: SteamVR_Behaviour_ActionType events were incorrectly sending the action instead of the behaviour component they came from.

 * Minor Breaking Change: Simplified the handFollowTransform member to be one variable instead of three

 * Fixed code generation so it deletes unused actionset classes (asks first)

 * Fixed behaviour events disappearing from serialized objects in some unity versions

 * Added a few events to SteamVR_Behaviour_Skeleton

 * Added C# style events to the SteamVR_Behaviour_ActionType components.

 * Added Happy Ball as an example of a complex blending pose that moves the held object

 * Added scaling support for the skeleton poser
 
 * Cleaned up the canvas elements on the Interaction System Sample scene.

 * Skeleton poser is now able to snap/follow interactables

 * Fixed the namespace on a couple small sample scene components

 * When clicking the "Show binding UI" button we will now always try to launch the default browser, though it may fail sometimes (Edge) we have better error messages now

 * Fixed some documentation errors

 * Improved skeleton poser editor ui

 * Fixed an issue with ActionSets not serializing defaults properly

Author: keithbradner

Assets/SteamVR/Input/BehaviourUnityEvents.meta

@@ -0,0 +1,9 @@
+//======= Copyright (c) Valve Corporation, All rights reserved. ===============
+using System;
+using UnityEngine.Events;
+
+namespace Valve.VR
+{
+    [Serializable]
+    public class SteamVR_Behaviour_BooleanEvent : UnityEvent<SteamVR_Behaviour_Boolean, SteamVR_Input_Sources, bool> { }
+}

Assets/SteamVR/Input/BehaviourUnityEvents/SteamVR_Behaviour_BooleanEvent.cs

@@ -0,0 +1,10 @@
+//======= Copyright (c) Valve Corporation, All rights reserved. ===============
+
+using System;
+using UnityEngine.Events;
+
+namespace Valve.VR
+{
+    [Serializable]
+    public class SteamVR_Behaviour_PoseEvent : UnityEvent<SteamVR_Behaviour_Pose, SteamVR_Input_Sources> { }
+}

…amples/Scripts/RenderModelHolder.cs.meta …s/SteamVR_Behaviour_BooleanEvent.cs.metaAssets/SteamVR/InteractionSystem/Samples/Scripts/RenderModelHolder.cs.meta renamed to Assets/SteamVR/Input/BehaviourUnityEvents/SteamVR_Behaviour_BooleanEvent.cs.meta Assets/SteamVR/InteractionSystem/Samples/Scripts/RenderModelHolder.cs.meta renamed to Assets/SteamVR/Input/BehaviourUnityEvents/SteamVR_Behaviour_BooleanEvent.cs.meta

@@ -0,0 +1,10 @@
+//======= Copyright (c) Valve Corporation, All rights reserved. ===============
+
+using System;
+using UnityEngine.Events;
+
+namespace Valve.VR
+{
+    [Serializable]
+    public class SteamVR_Behaviour_Pose_ConnectedChangedEvent : UnityEvent<SteamVR_Behaviour_Pose, SteamVR_Input_Sources, bool> { }
+}

Assets/SteamVR/Input/BehaviourUnityEvents/SteamVR_Behaviour_PoseEvent.cs

@@ -0,0 +1,10 @@
+//======= Copyright (c) Valve Corporation, All rights reserved. ===============
+
+using System;
+using UnityEngine.Events;
+
+namespace Valve.VR
+{
+    [Serializable]
+    public class SteamVR_Behaviour_Pose_DeviceIndexChangedEvent : UnityEvent<SteamVR_Behaviour_Pose, SteamVR_Input_Sources, int> { }
+}

Assets/SteamVR/Input/BehaviourUnityEvents/SteamVR_Behaviour_PoseEvent.cs.meta

@@ -0,0 +1,10 @@
+//======= Copyright (c) Valve Corporation, All rights reserved. ===============
+
+using System;
+using UnityEngine.Events;
+
+namespace Valve.VR
+{
+    [Serializable]
+    public class SteamVR_Behaviour_Pose_TrackingChangedEvent : UnityEvent<SteamVR_Behaviour_Pose, SteamVR_Input_Sources, ETrackingResult> { }
+}