Add TypeScript types

[jaredpalmer]

No description provided.

[karol-majewski]

@jaredpalmer Thank you for your contribution! It's great to see a piece of work well done, especially when it's done by someone of your reputation.

As you may have noticed, this repository has not been actively maintained for quite some time now. We decided to keep it, but we can't afford to spend any more time on it.

However, because there is real value in having TypeScript definitions, it would be a shame to see them go to waste. What do you think about submitting them to DefinitelyTyped instead? This way the library consumers could benefit from them and everyone interested would be welcome to join the code review process, which should speed it up significantly.

Please let me know your thoughts.

[jaredpalmer]

If this lib is not actively maintained anyways, better DX is to commit them here.

[karol-majewski]

The reason I'm asking is that piece of advice from Daniel Rosenwasser:

mrsteele/dotenv-webpack#118 (comment)

It seems like there's more value in having the two separated.

Edit: just noticed this :D

[jaredpalmer]

Cant argue with myself lol