shader: Initial recompiler work

src/shader_recompiler/file_environment.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <vector>
+
+#include "common/common_types.h"
+#include "environment.h"
+
+namespace Shader {
+
+class FileEnvironment final : public Environment {
+public:
+    explicit FileEnvironment(const char* path);
+    ~FileEnvironment() override;
+
+    u64 ReadInstruction(u32 offset) const override;
+
+private:
+    std::vector<u64> data;
+};
+
+} // namespace Shader