WIP: TU_Dice #183

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lgtm, just a few details

Wait, this branch is based on the main branch from 6 days ago. You're gonna have so many conflicts.

Can you just make a new branch from main, and then paste your unit tests in the corresponding files?

thanks

                 Color.FromArgb(144, 255, 78, 240),
             };
             yield return new object[]
             {

 using System.Threading.Tasks;
 using Xunit;
 using System.Drawing;
 using Model.Dice.Faces;