Support /// <reference types

[unional]

https://www.typescriptlang.org/docs/handbook/declaration-files/publishing.html

If we use the typings, we are putting it in the dependencies and use /// <reference types="<package>" />.

dependency-check currently do not detect this is proper usage. 🌷

EDIT: in order to do this, we need to check *.d.ts. /// <reference types="..."/> live in *.d.ts after compilation.

[blakeembrey]

Noted in #59 (comment), this module would probably need to adopt some sort of plugin approach to make this work. Another approach would be TypeScript as a separate module or TSLint rules (TSLint rules might make the most sense).

[blakeembrey]

Closing in reference to #59