message: Add help entry for depend-info
diff: @@ -104,6 +104,7 @@ namespace vcpkg::Help
  " vcpkg create <pkg> <url>\n"
  " [archivename] Create a new package\n"
  " vcpkg owns <pat> Search for files in installed packages\n"
  + " vcpkg depend-info [pkg]... Display a list of dependencies for packages\n"
  " vcpkg env Creates a clean shell environment for development or "
  "compiling.\n"
  " vcpkg version Display version information\n"
  