Add rule "Avoid using resource-hungry libraries"

[utarwyn]

It might be interesting to start with the idea given by a group of spotters at the 2023 hackathon:
green-code-initiative/creedengo-challenge#37

And perhaps extend it a little to advise against using certain old or resource-hungry libraries?

CNumR doc is also here

Important

This rule has not yet been implemented in the Creedengo rules repository.
But I think it's worth exploring during the challenge! And think about a suitable implementation.

[safaaoug]

The LESS team is implementing this rule