Custom length-prefixed-stream type definition missing from package distribution

[alex-ketch]

The custom length-prefixed-stream type definition causes errors when used in other projects.

There's a workaround, but it's not ideal, to enable "skipLibCheck": true in the consuming project's tsconfig.json.

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We can try to contribute the definition to DefinitelyTyped, look into including the definition with the packaged module and seeing if that resolves the issue, or explore alternatives.

[nokome]

Honestly, I'd prefer just to // @ts-ignore length-prefixed-stream and delete declarations.d.ts than go down the resource ravenous rabbit hole of JS/TS packaging again.