Partial rewrite of the TypeScript project JoA Dice in ReScript

This is the 2nd edition of my language exploration project

• Typescript (original)
• Rescript (this one)
• Haskell
• Rust

to be fair in term of language comparison, I have to note that the internal model used in this project is simpler than the previous one:

• from roll: map<face, count> in typescript
• to roll: list<face> in rescript

firsts impressions:

• automatic prettier in the vscode plugin is fine, but sometimes you'd prefer to format yourself to make the code more explicit (for instance keep function signature separated from the implementation)
• Belt module miss some important functions (for instance no Belt.List.toArray, you have to get it in another (undocumented) module Array.of_list)
• more generally, juggling with Belt and Js module is a pain
• documentation is improvable, I got most of the info I needed on the language itself (I'm a noob in FP) from an other source (Exploring ReasonML)
• otherwise, the language is really promising :)

build with npm run build, build+watch with npm run start