shader_recompiler: Implement render target swizzles when no format is available (#739)

* shader_recompiler: Use null image when shader is compiled with unbound sharp

* video_core: Refactor and render target swizzles

* liverpool_to_vk: Add missing swap format from RDR

* video_core: Refactor shader recompiler interface

* Makes it much easier to pass runtime information to the recompiler and have it treated as part of the shader key. Also pulls out most runtime state from Info struct

* shader_recompiler: Avoid some asserts

src/shader_recompiler/params.h

@@ -0,0 +1,26 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <span>
+#include "common/types.h"
+
+namespace Shader {
+
+/**
+ * Compilation parameters used to identify and locate a guest shader program.
+ */
+struct ShaderParams {
+    static constexpr u32 NumShaderUserData = 16;
+
+    std::span<const u32, NumShaderUserData> user_data;
+    std::span<const u32> code;
+    u64 hash;
+
+    VAddr Base() const noexcept {
+        return reinterpret_cast<VAddr>(code.data());
+    }
+};
+
+} // namespace Shader