[Refactoring]: Dicelib should be merged into MapTool Repository

[cwisniew]

Describe the problem

Dicelib is so intrinsically linked MapTool that it's unlikely anything else will ever use it -- it even requires the parser project to work. On top of this, it is harder for contributors to contribute new dice rolls as it requires performing a juggling act to ensure that you can test your changes locally before submitting two PRs to two different repositories.

The improvement you'd like to see

Merge the dicelib into the MapTool repository

Expected Benefits

Less friction for those that want to add new dice rolls as right now its a hassle

Additional Context

No response