Add a slide on nm, ldd and objdump

[bernhardmgruber]

Both tools are mentioned in the exercise on the compilation chain, but we have no slide that mentions what these tools do and why/when they are needed.

[stale[bot]]

This issue or pull request has been automatically marked as stale because it has not had recent activity. Please manually close it, if it is no longer relevant, or ask for help or support to help getting it unstuck. Let me bring this to the attention of @klieret @wdconinc @michmx for now.

[bernhardmgruber]

I would still like to have a slide or two on these. I know @sponce explains that as part of an exercise, so we do not need to present the slides. But they can still serve as a summary and just list the few commands that were shown during the exercise. @sponce or @hageboeck may I assign one of you to this issue?

[sponce]

Fine with me (both the idea and the assignment).

[bernhardmgruber]

@hageboeck presented these tools again today with several flags. I could never do that, I just would not know the flags. Please add one slide on that :)