Support for using latexrun only to parse the LaTeX log files

[lervag]

I've not really used latexrun much, yet, but I've heard positive things. One of these is that latexrun is able to parse the LaTeX log and print them in a much more readable (and parsable) manner.

I am thinking that this feature itself is interesting, e.g. in order to use latexrun only to actually parse the log files. I am the developer of vimtex, and I would be interested in adding an error parsing layer that relies on latexrun, if this feature were to be added.

Let me know if this request is unclear, and I'll try to explain it better.