feature: separate fetcher cache from poistinstall scripts artifacts cache

[bestander]

Do you want to request a feature or report a bug?
feature to mitigate bugs

What is the current behavior?

We have quite a lot of issues happening at the install scripts phase of installation and some of them are related to possible cache issues (e.g. issues with node-sass).

We should have a separate cache folder for build artifacts which we could control independently from the packages cached after fetching, e.g. we could make changes in node version, application path and Yarn version to invalidate those caches.