Rewrite packbeam.c

[jakub-gonet]

I went and implemented my suggestion from #1394.
I didn't do any thorough checks yet since I want to get feedback first (make -j in build/ doesn't crash on my machine).
Worked on original file, slowly refactoring to what I had in mind. Do we have tests for packbeam or we only check it by usage?

Leaving all commits for now, will squash after acceptance.

1. Added TRY macro that checks bool output from expression and if false, stops the execution of current function.
2. Various functions have additional bool output to check for errors.
3. Refactored error output, printing usage when it makes sense (maybe should've used perror for internals?).
4. Added TODOs for things that would change the structure stronger that I wanted for now.

These changes are made under both the "Apache 2.0" and the "GNU Lesser General
Public License 2.1 or later" license terms (dual license).

SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later

[jakub-gonet]

I did expect some CI to fail but not pretty much everything. How can I test it locally? I was doing make clean && make -j inside build/ for local testing (using MacOS).

In any case, I'll try to pin down the issue. You don't need to do full review, just let me know if approach is sane.