HDRenderPipeline: enabled depth test by default for distortion

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.shader

 
         _DistortionVectorMap("DistortionVectorMap", 2D) = "black" {}
         [ToggleOff] _DistortionEnable("Enable Distortion", Float) = 0.0
-        [ToggleOff] _DistortionDepthTest("Distortion Depth Test Enable", Float) = 0.0
+        [ToggleOff] _DistortionDepthTest("Distortion Depth Test Enable", Float) = 1.0
         [Enum(Add, 0, Multiply, 1)] _DistortionBlendMode("Distortion Blend Mode", Int) = 0
         [HideInInspector] _DistortionSrcBlend("Distortion Blend Src", Int) = 0
         [HideInInspector] _DistortionDstBlend("Distortion Blend Dst", Int) = 0

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitTessellation.shader

         _DistortionVectorMap("DistortionVectorMap", 2D) = "black" {}
         [ToggleOff] _DistortionEnable("Enable Distortion", Float) = 0.0
         [ToggleOff] _DistortionOnly("Distortion Only", Float) = 0.0
-        [ToggleOff] _DistortionDepthTest("Distortion Depth Test Enable", Float) = 0.0
+        [ToggleOff] _DistortionDepthTest("Distortion Depth Test Enable", Float) = 1.0
         [Enum(Add, 0, Multiply, 1)] _DistortionBlendMode("Distortion Blend Mode", Int) = 0
         [HideInInspector] _DistortionSrcBlend("Distortion Blend Src", Int) = 0
         [HideInInspector] _DistortionDstBlend("Distortion Blend Dst", Int) = 0

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Unlit.shader

         _DistortionVectorMap("DistortionVectorMap", 2D) = "black" {}
         [ToggleOff] _DistortionEnable("Enable Distortion", Float) = 0.0
         [ToggleOff] _DistortionOnly("Distortion Only", Float) = 0.0
-        [ToggleOff] _DistortionDepthTest("Distortion Depth Test Enable", Float) = 0.0
+        [ToggleOff] _DistortionDepthTest("Distortion Depth Test Enable", Float) = 1.0
         [Enum(Add, 0, Multiply, 1)] _DistortionBlendMode("Distortion Blend Mode", Int) = 0
         [HideInInspector] _DistortionSrcBlend("Distortion Blend Src", Int) = 0
         [HideInInspector] _DistortionDstBlend("Distortion Blend Dst", Int) = 0