Support the 4dF syntax used by Fate and Fudge

[amazingrando]

https://en.wikipedia.org/wiki/Fudge_(role-playing_game_system)#Game_mechanics

This would make it much easier to run Fate games using a Slack channel so I would appreciate it if you would consider this feature. Thanks!

[Granite26]

A quick and dirty way to do this is Xd3-2X

You'll have to do the 2X multiplication yourself, though :)

[mertenhanisch]

it would still be cool to have 4dF :) +1

[arkie]

[amazingrando]

@arkie Thanks for adding Fate Dice!