Fuzzing
This MR adds fuzzing harnesses for a few Pacman functions:
- string_length
- wordsplit
- alpm_extract_keyid
- parseconfigfile
This branch/MR still needs some improvements, mainly the build system needs to be adjusted so the -fsanitize=address
and other flags are not used globally and only if fuzzing harnesses are build and some of the code can be improved.