improve behavior for tool windows and scroll bars, add 2 menus, 2 bugfixed

• improve behavior
  • tool windows such as Catalog/Folder Window
  • If scroll bars are required only for width or height of an image, only the scroll bars that are required are displayed.
    • reported by @Chocolateiro on issue #37
  • can Scroll images with cursor keys when to show scrollbars
    • reported by @Chocolateiro on issue #37
• add 'Don't update history'
  • reported by @Chocolateiro on issue #37
• add 'Show full path of the volume'
  • reported by @Chocolateiro on issue #37
• bugfixed: The left end was not displayed when the image is larger than the screen
• bugfixed: prevent to crash on incorrect file
  • reported by @vatterspun on issue #38
  • reported by @GitHubRulesOK on issue #35