* Improve archive version detection to match the file extension
   instead of whole name. This helps decrypting games that have a
   renamed archive, for example Pokemon Uranium with a renamed archive
   "Uranium.rgssad".

   This is not a best solution as the archive version can be also detected by reading
   archive header and this is  already used in a codebase when reading from the
   archive starts. Maybe this could be later improved by refactoring.
 * Improve error reporting so that undetected RPG Maker version detection
   is told to user.
 * CLI: Add error reporting when input file is not found