Merge: Update basic requirements and document them

Since #2615 we broke the initial build according to the documentation since nitpm (picnit) requires libcurl.

To minimize the number of doc to update I just moved `nitpm` to the "more" set of tools and documented their requirements.
I also added a CI job to avoid future failures (note: I'm not sure how to adapt it on other docker-less platforms).

Pull-Request: #2766
Reviewed-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --cc .gitlab-ci.yml
Simple merge