README.md: add examples and fix typos

yazc: add backslash to special characters list

yazc: indicate default max length in usage message

libzc: update README.md

libzc: bump to clang 19

libzc: use -O3 -ffast-math instead of -Ofast

yazc: fix compilation warning

libzc: add option to plaintext sub-command

libzc: fix cppcheck warnings

libzc: cleanup

debian: update debian control file

docker: updates for new docker release

libzc: clear error found with scanbuild

libzc: small cleanup

libzc: remove loop check bounds check