cleaning up dice.ts

[bretjb]

What does this do?

• Updating jest to latest package
• Adding vscode debug test config file for more easy test runner
• Adding dice.ts tests
• dice.ts
  • Moving all parsing to dedicated function
  • Adds intermediary data structure between parsing + rolling
  • Throwing TypeException more places
  • Removes helper object for dice roller into dedicated functions

How was this tested? Did you test the changes in the compiled .html file?

Unit tests included; should be no user-visible changes.

Is there a GitHub Issue that this is resolving?

There is not. The background is that I was curious as to how content was generated, and I poked around in the repo and saw some things that could use cleaning up, so I did. Apologies if this has too many unrelated changes in it -- I can certainly back some of them out.

[ryceg]

Thanks for taking the time to make a pull request! This looks like a good change, and I appreciate you creating tests (something which the project is in dire need of). The dice function is not actually original code (save for changing it to typescript); you might like to also make a pull request in the original repo!

[Glinkis]

Kind of late to the party, but just want to say this looks excellent.