Use only parts of Faker, not whole

Due to the code `const faker = require('faker/locale/en);` there is whole `mime-db.json` and many more imported and present in code, even though these parts of code can't be ever reached from `eidolon` per the implementation in `https://github.com/danielgtaylor/eidolon/blob/master/src/example.coffee` or `https://github.com/danielgtaylor/eidolon/blob/master/src/default-value.coffee`

I'll make the built bundles with `eidolon` inside many-times smaller compared to current status.