HDRenderPipeline: Fix RessourceAssetTest and update detail texture formula

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitDataInternal.hlsl

     // Use overlay blend mode for detail abledo: (base < 0.5 ? (2.0 * base * blend) : (1.0 - 2.0 * (1.0 - base) * (1.0 - blend)))
     float3 baseColorOverlay = (detailAlbedo < 0.5) ? 
                                 surfaceData.baseColor * PositivePow(2.0 * detailAlbedo, ADD_IDX(_DetailAlbedoScale)) :
-                                1.0 - 2.0 * (1.0 - surfaceData.baseColor) * (1.0 - (detailAlbedo * ADD_IDX(_DetailAlbedoScale)));
+                                1.0 - (1.0 - surfaceData.baseColor) * PositivePow(2.0 * (1.0 - detailAlbedo), ADD_IDX(_DetailAlbedoScale));
     // Lerp with details mask
     surfaceData.baseColor = lerp(surfaceData.baseColor, saturate(baseColorOverlay), detailMask);
 #endif
     // Use overlay blend mode for detail abledo: (base < 0.5 ? (2.0 * base * blend) : (1.0 - 2.0 * (1.0 - base) * (1.0 - blend)))
     float smoothnessOverlay = (detailSmoothness < 0.5) ?
                                 surfaceData.perceptualSmoothness * PositivePow(2.0 * detailSmoothness, ADD_IDX(_DetailSmoothnessScale)) :
-                                1.0 - 2.0 * (1.0 - surfaceData.baseColor) * (1.0 - (detailSmoothness * ADD_IDX(_DetailSmoothnessScale)));
+                                1.0 - (1.0 - surfaceData.baseColor) * PositivePow(2.0 * (1.0 - detailSmoothness), ADD_IDX(_DetailSmoothnessScale));
     // Lerp with details mask
     surfaceData.perceptualSmoothness = lerp(surfaceData.perceptualSmoothness, saturate(smoothnessOverlay), detailMask);
 #endif

Tests/GraphicsTests/RenderPipeline/HDRenderPipeline/HDRPAsset/HDRenderPipelineResourcesTest.asset

   gaussianPyramidCS: {fileID: 7200000, guid: 6dba4103d23a7904fbc49099355aff3e, type: 3}
   depthPyramidCS: {fileID: 7200000, guid: 64a553bb564274041906f78ffba955e4, type: 3}
   copyChannelCS: {fileID: 7200000, guid: a68d8aaeb0956234d94e389f196381ee, type: 3}
+  applyDistortionCS: {fileID: 7200000, guid: 2fa6c0e3fe6dc3145a4156f21913fe5c, type: 3}
   clearDispatchIndirectShader: {fileID: 7200000, guid: fc1f553acb80a6446a32d33e403d0656,
     type: 3}
   buildDispatchIndirectShader: {fileID: 7200000, guid: 4eb1b418be7044c40bb5200496c50f14,