Add shader compiler for WebGPU

Use existing Vulkan compiler to generate SPIR-V and convert it into WGSL with tint compiler
https://github.com/google/dawn/releases/tag/v20260219.200501

Source/Engine/ShadersCompilation/WebGPU/ShaderCompilerWebGPU.h

@@ -0,0 +1,28 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#if COMPILE_WITH_WEBGPU_SHADER_COMPILER
+
+#include "Engine/ShadersCompilation/Vulkan/ShaderCompilerVulkan.h"
+
+/// <summary>
+/// Implementation of shaders compiler for Web GPU rendering backend.
+/// </summary>
+class ShaderCompilerWebGPU : public ShaderCompilerVulkan
+{
+public:
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ShaderCompilerWebGPU"/> class.
+    /// </summary>
+    /// <param name="profile">The profile.</param>
+    ShaderCompilerWebGPU(ShaderProfile profile);
+
+protected:
+    bool OnCompileBegin() override;
+    void InitParsing(ShaderCompilationContext* context, glslang::TShader& shader) override;
+    void InitCodegen(ShaderCompilationContext* context, glslang::SpvOptions& spvOptions) override;
+    bool Write(ShaderCompilationContext* context, ShaderFunctionMeta& meta, int32 permutationIndex, const ShaderBindings& bindings, struct SpirvShaderHeader& header, std::vector<unsigned>& spirv) override;
+};
+
+#endif