vk_pipeline_cache: Add file and define descriptor update template filler

This function allows us to share code between compute and graphics
pipelines compilation.

src/video_core/renderer_vulkan/vk_pipeline_cache.h

@@ -0,0 +1,22 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <vector>
+
+#include "common/common_types.h"
+#include "video_core/renderer_vulkan/declarations.h"
+#include "video_core/renderer_vulkan/vk_shader_decompiler.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace Vulkan {
+
+class VKDevice;
+
+void FillDescriptorUpdateTemplateEntries(
+    const VKDevice& device, const ShaderEntries& entries, u32& binding, u32& offset,
+    std::vector<vk::DescriptorUpdateTemplateEntry>& template_entries);
+
+} // namespace Vulkan