Kernel: Implement the Close command for Archive, File and Directory.

src/core/hle/kernel/archive.h

@@ -21,6 +21,13 @@ namespace Kernel {
  */
 Handle OpenArchive(FileSys::Archive::IdCode id_code);
 
+/**
+ * Closes an archive
+ * @param id_code IdCode of the archive to open
+ * @return true if it worked fine
+ */
+Result CloseArchive(FileSys::Archive::IdCode id_code);
+
 /**
  * Creates an Archive
  * @param backend File system backend interface to the archive