Consolidate third-party plugins into Assets/Plugins

Move and consolidate many third-party plugin files and metadata from various locations (notably Assets/Third Parties/Plugins 1 and scattered Opsive/Photon folders) into a unified Assets/Plugins directory. Includes DOTween, PrimeTween, Native/BackroomsNoise, Sirenix/Odin Inspector, and Opsive UltimateCharacterController/shared libs, plus updates to several .meta files and removal of obsolete installer/legacy files. This standardizes plugin layout and cleans up duplicate/obsolete assets.

Assets/Third Parties/Opsive/UltimateCharacterController/Demo/Scripts/AI/Idle.cs

@@ -0,0 +1,43 @@
+/// ---------------------------------------------
+/// Ultimate Character Controller
+/// Copyright (c) Opsive. All Rights Reserved.
+/// https://www.opsive.com
+/// ---------------------------------------------
+
+namespace Opsive.UltimateCharacterController.Demo.AI
+{
+    using Opsive.UltimateCharacterController.Character.MovementTypes;
+    using UnityEngine;
+
+    /// <summary>
+    /// The Idle Movement Type will ensure the AI character doesn't move. A regular Movement Type could have also been used but there isn't a common Movement Type included
+    /// with all of the different packages so it's easier to use the same Movement Type for demo purposes.
+    /// </summary>
+    public class Idle : MovementType
+    {
+        public override bool FirstPersonPerspective { get { return false; } }
+
+        /// <summary>
+        /// Returns the delta yaw rotation of the character.
+        /// </summary>
+        /// <param name="characterHorizontalMovement">The character's horizontal movement.</param>
+        /// <param name="characterForwardMovement">The character's forward movement.</param>
+        /// <param name="cameraHorizontalMovement">The camera's horizontal movement.</param>
+        /// <param name="cameraVerticalMovement">The camera's vertical movement.</param>
+        /// <returns>The delta yaw rotation of the character.</returns>
+        public override float GetDeltaYawRotation(float characterHorizontalMovement, float characterForwardMovement, float cameraHorizontalMovement, float cameraVerticalMovement)
+        {
+            return 0;
+        }
+
+        /// <summary>
+        /// Gets the controller's input vector relative to the movement type.
+        /// </summary>
+        /// <param name="inputVector">The current input vector.</param>
+        /// <returns>The updated input vector.</returns>
+        public override Vector2 GetInputVector(Vector2 inputVector)
+        {
+            return inputVector;
+        }
+    }
+}