Add the support to load cunningham.ts local config file based on ts-node.
Those files will be loaded as CommonJS to preserve to coherence regarding
the way the cunningham bin is ran by node.
Relatives import are quite ugly and reduces readability, but
hard to say that Typescript handles it very well for compilation
time, but nothing for runtime. That's why I had to add tsc-alias
to the build script. Please see this issue for more details.
https://github.com/Microsoft/TypeScript/issues/15479
Furthermore, some configuration was needed for Jest to work well.
This repo is made for the bin script that generates the tokens files,
at the moment it only generates a css file, but it is designed to be
able to generate any other file format ( Typescript, Javascript for example )
