Add TypeScript type declarations

[jirutka]

Please release a new version after merging, so I can already start using it.

[Download]

I am no TypeScript user, but this looks like great work!

[Download]

Released in 0.18.0
Also published to NPM
Thank you for your contribution Jakub!

[Download]

@jirutka
Jakub I invited you as a collaborator because of your great contribution. 👍

Please feel free to create a new PR when you have something else to add, or use your new powers (should you accept them) to merge the work of other people. I only ask that we try to maintain a 2-pair-of-eyes principle: we don't directly merge our own work but instead invite someone else to review it and merge it. Welcome aboard!

-Stijn

[jirutka]

Jakub I invited you as a collaborator because of your great contribution. +1
Oh, thank you! 😺

I only ask that we try to maintain a 2-pair-of-eyes principle: we don't directly merge our own work but instead invite someone else to review it and merge it.

That’s a good approach, I will stick to it!

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Could you please also resolve Download/ulog#21?