shader: Add pools and rename files

src/shader_recompiler/frontend/maxwell/opcodes.h

@@ -0,0 +1,30 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <fmt/format.h>
+
+namespace Shader::Maxwell {
+
+enum class Opcode {
+#define INST(name, cute, encode) name,
+#include "maxwell.inc"
+#undef INST
+};
+
+const char* NameOf(Opcode opcode);
+
+} // namespace Shader::Maxwell
+
+template <>
+struct fmt::formatter<Shader::Maxwell::Opcode> {
+    constexpr auto parse(format_parse_context& ctx) {
+        return ctx.begin();
+    }
+    template <typename FormatContext>
+    auto format(const Shader::Maxwell::Opcode& opcode, FormatContext& ctx) {
+        return format_to(ctx.out(), "{}", NameOf(opcode));
+    }
+};