WISH: be able to disable current native input arguments handler

[Oldes]

Once it would be possible to use custom boot script (https://github.com/Oldes/Rebol-wishes/issues/37), it will be useful to disable the current input options and provide just a raw arguments string, which the boot script could handle itself.

Which means to disable current Rebol interpreter options:

     --args data      Explicit arguments to script (quoted)
      --do expr        Evaluate expression (quoted)
      --help (-?)      Display this usage information (then quit)
      --script file    Explicit script filename
      --version tuple  Script must be this version or greater

  Special options:

      --boot level     Valid levels: base sys mods
      --debug flags    For user scripts (system/options/debug)
      --halt (-h)      Leave console open when script is done
      --import file    Import a module prior to script
      --quiet (-q)     No startup banners or information
      --secure policy  Can be: none allow ask throw quit
      --trace (-t)     Enable trace mode during boot
      --verbose        Show detailed startup information

  Other quick options:

      -s               No security
      +s               Full security
      -v               Display version only (then quit)

With this change it will be possible to create custom binary utilities.