Overhauling the EasyBuild logging

[ocaisa]

If we were considering overhauling the logging of EB anyway, it might be interesting to consider yaml output for EB logging. This approach is used, for example, by BigDFT.

This would potentially allow us to use log files as input to allow reproduction of bugs, and also facilitate post-processing of log files (different views:minimal, detailed, debug,...).

BigDFT have tips for how to still allow the output to be human readable and grep-able and said they'd be happy to share them

[verdurin]

This came up again in the Maintainer Summit, March 2023.

@smoors may be able to share the Vim syntax colouring setup he created, for easier navigation.

[branfosj]

I started on #4001, but it was unclear on to how to correctly add that to the code.

[smoors]

here is my vim syntax file for inspiration
can certainly be improved upon
https://gist.github.com/smoors/0b4012a1109acbc6edb8e41852eff648

[terjekv]

Is there a reason to use YAML over JSON for logging? https://www.structlog.org/en/stable/ is very nice to work with, and integrates very smoothly into python.