[M] add fswave FSBlur Test scripts

Assets/Test/Scripts/RendererFeatureToggle.cs

@@ -0,0 +1,30 @@
+using UnityEngine;
+using zzwater;
+
+public class RendererFeatureToggle : MonoBehaviour
+{
+    void OnGUI()
+    {
+        GUILayout.Label("W Toggle FSWave");
+        GUILayout.Label("B Toggle FSBlur");
+    }
+
+    void Update()
+    {
+        if (Input.GetKeyUp(KeyCode.W))
+        {
+            ToggleRendererFeature("FSWave");
+        }
+
+        if(Input.GetKeyUp(KeyCode.B))
+        {
+            ToggleRendererFeature("FSBlur");
+        }
+    }
+
+    private void ToggleRendererFeature(string featureName)
+    {
+        var feature = URPHelper.FindAndCacheRendererFeature(featureName);
+        feature?.SetActive(!feature.isActive);
+    }
+}