Add Typescript types

[Qix-]

Let's maintain our own Types instead of relying on a very slow third party process to do it for us.

[himself65]

when

[Qix-]

@himself65 whenever someone would like to open a PR, as is the case with most Open Source.

[justinmakaila]

@types/debug exists... we should be able to pull from that

[exx8]

Willing to help.
Is still relevant?