Put everything back.

ctrtool/deps/libtoolchain/include/tc/io/IPathResolver.h

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+	/**
+	 * @file IPathResolver.h
+	 * @brief Declaration of tc::io::IPathResolver
+	 * @author Jack (jakcron)
+	 * @version 0.2
+	 * @date 2022/02/22
+	 **/
+#pragma once
+#include <tc/io/Path.h>
+
+namespace tc { namespace io {
+
+	    /**
+		 * @class IPathResolver
+		 * @brief This is an interface for a class that resolves relative paths to canonical paths.
+		 */
+	class IPathResolver
+	{
+	public:
+		virtual ~IPathResolver() = default;
+		
+			/**
+			 * @brief Resolve path to its canonical path
+			 * 
+			 * @param path Input path.
+			 * @param canonical_path Output path to write resolved canonical path.
+			 */
+		virtual void resolveCanonicalPath(const tc::io::Path& path, tc::io::Path& canonical_path) const = 0;
+
+			/**
+			 * @brief Resolve path to its canonical path
+			 * 
+			 * @param path Input path.
+			 * 
+			 * @return Resolved canonical path.
+			 */
+		virtual tc::io::Path resolveCanonicalPath(const tc::io::Path& path) const = 0;
+	};
+
+}} // namespace tc::io