Custom Dice Commands in Dice Menu

[rpdeshaies]

🚩 Is your feature request related to a problem? Please describe

Some game systems are more complicated than rolling simple dice and adding them together.
For that reason, as a user, I would like to be able to enter a dice command manually inside the Dice Menu so that I can roll any type of dice I want, use additions and subtractions as well as more advanced commands like exploding dice.

✅ Describe the solution you'd like

Add a way to toggle between "simple" and "advanced commands" where the simple commands shows the current menu but the advanced commands shows an input that uses a new dice command type like Custom.

When rolling a custom command, we could use something like this and get then end result from there.