[FS] Formatting archives v1

include/fs/archive_ext_save_data.hpp

@@ -17,6 +17,10 @@ public:
 	FileDescriptor openFile(const FSPath& path, const FilePerms& perms) override;
 	std::optional<u32> readFile(FileSession* file, u64 offset, u32 size, u32 dataPointer) override;
 
+	// Takes in a binary ExtSaveData path, outputs a combination of the backing folder with the low and high save entries of the path
+	// Used for identifying the archive format info files
+	std::string getExtSaveDataPathFromBinary(const FSPath& path);
+
 	bool isShared = false;
 	std::string backingFolder; // Backing folder for the archive. Can be NAND, Gamecard or SD depending on the archive path.
 };