Add SphereColliderHelper

SphereColliderHelper.md

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+# SphereColliderHelper
+ Component: GameObject
+
+| The component attached to the Sphere Collider. We use this as a simple way to retrieve information from the Sphere Collider in one call and send the information to the GPU. | ![https://i.imgur.com/7VE7OLN.png](https://i.imgur.com/7VE7OLN.png) |
+| -------- | -------- |
+
+## Friction
+Float: Min 0, Max 1, Default 0.8.
++ Low Friction (e.g., 0.1): The cloth will slide more easily over the surface. It will maintain more of its velocity when colliding with the collider.
++ High Friction (e.g., 0.9): The cloth will "stick" more to the surface. It will lose more of its velocity when colliding with the collider.
++ High Friction (e.g., 1.0): The cloth will behave as if it's "stuck" to the surface, maintaining its position relative to the collider.
+
+## Gizmo Color
+Color: Default Green.
++ Changes the color of the outliner for the Sphere Collider.
+
+------
+
+# API
+## GetCollidableSphereStruct()
+Returns the following Struct:
+```csharp
+public struct CollidableSphereStruct {
+    public Vector3 center;
+    public float radius;
+    public float friction;
+}
+```