feat(Input): ability to switch script input button based on sdk type

A new SDK Input Override script has been added that allows the input
button on the numerous scripts to be changed at runtime based on the
SDK being used or the controller type connected.

This script is in place of the proposed signal system which will be
more robust and more versatile than the sdk input override solution.

However, due to the way controller events still work, this is the
only viable solution right now. Hopefully, this script can be
deprecated in the future when/if the new signal system is implemented.

Author: thestonefox

Assets/VRTK/Documentation/API.md

@@ -667,6 +667,17 @@ The GetRotation method returns the current reported rotation of the direction in
 
 The SetMaterialColor method sets the current material colour on the direction indicator.
 
+#### GetControllerEvents/0
+
+  > `public virtual VRTK_ControllerEvents GetControllerEvents()`
+
+ * Parameters
+   * _none_
+ * Returns
+   * `VRTK_ControllerEvents` - The associated Controller Events script.
+
+The GetControllerEvents method returns the associated Controller Events script with the Pointer Direction Indicator script.
+
 ---
 
 ## Radial Menu (VRTK_RadialMenu)
@@ -8240,6 +8251,7 @@ A collection of scripts that provide useful functionality to aid the creation pr
  * [SDK Object Alias](#sdk-object-alias-vrtk_sdkobjectalias)
  * [SDK Transform Modify](#sdk-transform-modify-vrtk_sdktransformmodify)
  * [SDK Object State](#sdk-object-state-vrtk_sdkobjectstate)
+ * [SDK Input Override](#sdk-input-override-vrtk_sdkinputoverride)
  * [Velocity Estimator](#velocity-estimator-vrtk_velocityestimator)
 
 ---
@@ -9778,6 +9790,66 @@ The SetStateByControllerReference method sets the object state based on the cont
 
 ---
 
+## SDK Input Override (VRTK_SDKInputOverride)
+ > extends VRTK_SDKControllerReady
+
+### Overview
+
+Provides the ability to switch button mappings based on the current SDK or controller type
+
+**Script Usage:**
+ * Place the `VRTK_PlayerClimb` script on any active scene GameObject.
+
+### Inspector Parameters
+
+ * **Loaded SDK Setup:** An optional SDK Setup to use to determine when to modify the transform.
+ * **Controller Type:** An optional SDK controller type to use to determine when to modify the transform.
+ * **Override Button:** The button to override to.
+ * **Override Axis:** The Vector2 axis to override to.
+ * **Interact Grab Script:** The Interact Grab script to override the controls on.
+ * **Interact Grab Overrides:** The list of overrides.
+ * **Interact Use Script:** The Interact Use script to override the controls on.
+ * **Interact Use Overrides:** The list of overrides.
+ * **Pointer Script:** The Pointer script to override the controls on.
+ * **Pointer Activation Overrides:** The list of overrides for the activation button.
+ * **Pointer Selection Overrides:** The list of overrides for the selection button.
+ * **Ui Pointer Script:** The UI Pointer script to override the controls on.
+ * **Ui Pointer Activation Overrides:** The list of overrides for the activation button.
+ * **Ui Pointer Selection Overrides:** The list of overrides for the selection button.
+ * **Pointer Direction Indicator Script:** The Pointer Direction Indicator script to override the controls on.
+ * **Direction Indicator Coordinate Overrides:** The list of overrides for the coordinate axis.
+ * **Touchpad Control Script:** The Touchpad Control script to override the controls on.
+ * **Touchpad Control Coordinate Overrides:** The list of overrides for the Touchpad Control coordinate axis.
+ * **Touchpad Control Activation Overrides:** The list of overrides for the activation button.
+ * **Touchpad Control Modifier Overrides:** The list of overrides for the modifier button.
+ * **Button Control Script:** The ButtonControl script to override the controls on.
+ * **Button Control Forward Overrides:** The list of overrides for the forward button.
+ * **Button Control Backward Overrides:** The list of overrides for the backward button.
+ * **Button Control Left Overrides:** The list of overrides for the left button.
+ * **Button Control Right Overrides:** The list of overrides for the right button.
+ * **Slingshot Jump Script:** The SlingshotJump script to override the controls on.
+ * **Slingshot Jump Activation Overrides:** The list of overrides for the activation button.
+ * **Slingshot Jump Cancel Overrides:** The list of overrides for the cancel button.
+ * **Move In Place Script:** The MoveInPlace script to override the controls on.
+ * **Move In Place Engage Overrides:** The list of overrides for the engage button.
+ * **Step Multiplier Script:** The Step Multiplier script to override the controls on.
+ * **Step Multiplier Activation Overrides:** The list of overrides for the activation button.
+
+### Class Methods
+
+#### ForceManage/0
+
+  > `public virtual void ForceManage()`
+
+ * Parameters
+   * _none_
+ * Returns
+   * _none_
+
+The ForceManage method forces the inputs to be updated even without an SDK change event occuring.
+
+---
+
 ## Velocity Estimator (VRTK_VelocityEstimator)
 
 ### Overview

Assets/VRTK/Prefabs/PointerDirectionIndicator/VRTK_PointerDirectionIndicator.cs

@@ -129,6 +129,15 @@ public virtual void SetMaterialColor(Color color, bool validity)
             }
         }
 
+        /// <summary>
+        /// The GetControllerEvents method returns the associated Controller Events script with the Pointer Direction Indicator script.
+        /// </summary>
+        /// <returns>The associated Controller Events script.</returns>
+        public virtual VRTK_ControllerEvents GetControllerEvents()
+        {
+            return controllerEvents;
+        }
+
         protected virtual void Awake()
         {
             validLocation = transform.Find("ValidLocation").gameObject;