Bundle cacheable request types with the library

[normano]

I bundled @types/cacheable-request definition with the library primarily to solve the problem where dependent libraries (ex. got) fail to compile with @types/nodejs v13. This effectively removes dependency on @types/keyv (which is included in @types/cacheable-request) and bonus is that it would be much easier to update the definitions in the future should things change.

[coveralls]

Coverage remained the same at 100.0% when pulling 5dd4627 on normano:master into 0656a46 on lukechilds:master.

[normano]

@lukechilds Did you need an issue filed for this?

[lukechilds]

I'm not sure I understand the issue this is resolving.

I'm not a huge fan of TypeScript, this is a JavaScript project so ideally I would like to avoid committing TS related files to this repo.

If there is some sort of issue with DefinitelyTyped or Got resolving the @types package then it seems like it should be fixed on that end.

That said, this module was primarily written for use in Got, so if adding TS files to this repo is the only reasonable way to fix an issue then I'm definitely open to it.

[normano]

"I'm not a huge fan of TypeScript, this is a JavaScript project so ideally I would like to avoid committing TS related files to this repo."

All I needed to know. That's fine. I'll maintain my own fork.

[lukechilds]

Just out of interest, why are you maintaining your own fork over using the @types package?