uninitialized indirect buffer fix for depth of field and motion blur

WickedEngine/wiRenderer.cpp

@@ -12713,6 +12713,8 @@ void Postprocess_DepthOfField(
 	device->EventBegin("Postprocess_DepthOfField", cmd);
 	auto range = wi::profiler::BeginRangeGPU("Depth of Field", cmd);
 
+	device->ClearUAV(&res.buffer_tile_statistics, 0, cmd);
+
 	const TextureDesc& desc = output.GetDesc();
 
 	PostProcess postprocess;
@@ -13163,6 +13165,8 @@ void Postprocess_MotionBlur(
 
 	const TextureDesc& desc = output.GetDesc();
 
+	device->ClearUAV(&res.buffer_tile_statistics, 0, cmd);
+
 	PostProcess postprocess;
 	postprocess.resolution.x = desc.width;
 	postprocess.resolution.y = desc.height;

WickedEngine/wiVersion.cpp

@@ -9,7 +9,7 @@ namespace wi::version
 	// minor features, major updates, breaking compatibility changes
 	const int minor = 71;
 	// minor bug fixes, alterations, refactors, updates
-	const int revision = 156;
+	const int revision = 157;
 
 	const std::string version_string = std::to_string(major) + "." + std::to_string(minor) + "." + std::to_string(revision);