Add support for enum

[neilbaylor]

We need enum support for a project i'm working on, I will attempt to open a PR for this in the next day or so

Thanks for this package, its exactly what we needed!

[neilbaylor]

I've got this working locally, but just realized my prettier config messed up the formatting of all the files i touched.
🤦‍♂️

I'll clean it up tomorrow to match your formatting style and submit a PR.

PS are you using prettier? If so, could you include your config, that would make it easier.

Thanks!

[Necmttn]

we are just using tslint for this project.
how is your prettier lint looks like? I think it's would be good to have some prettier, husky, pre-commit lint scripts for this package.

current tslint.json

{
  "extends": "tslint-config-airbnb"
}

[neilbaylor]

Awesome, thanks, gonna see if i can unpriettier my local changes and open a few PRs for the features ive been adding.

[lhr0909]

@neilbaylor Thanks Neil! Looking forward to your PRs!