adding features

[amosso75]

• Sorts games by arcade system (Naomi 1, Naomi 2, Chihiro, Triforce) ;
• Sorts games by genre (Fighting, Horizontal Shmup, Puzzle, ...) ;
• Enables you to go to the previous/next letter inside any game list ;
• Multi-language support (for now only French & English) ;
• Enables you to give a nickname to each IP address for easy reading
  (useful when you have a multi-system setup) ;
• Enables you to define for each arcade system which IP addresses you
  allow as a target for uploading. The first IP of this list is the
  default one with fast access to upload a game ;
• Enables you to customize the items you want in the main menu and
  their order of appearance ;
• Enables you to customize the items you want in the "Games by genre"
  and "Games by system" menus and their order of appearance ;
• Easy configuration of inputs (default one is the one I use but I
  wrote another one in comments just as an example) ;
• Inputs management recognizes a long button press ;
• Shows a list of the "non matching" .bin files in the roms folder and
  enables you to choose an "orphan" game for automatic .bin file renaming
  ;
• Enables you inside any game list to add or remove a favorite game
  (this list is saved in a text file) ;
• A little heart is placed next to a favorite game's name on any list
• Shows a list of your favorite games ;