Add libargon2 and/or libsodium

Added both libraries in the PR (sodium and argon2). Its the way debian php is built.

It would be possible to minimize dependencies by not adding sodium at all and stick with argon2 library. From PHP 8.4, even that one is not necessary anymore. From that version onwards it is possible to use OpenSSL Argon2 implementation. Question here: Is it preferable to remain close to what distros are shipping or is it preferable to minimize dependencies.

Test command and example result for images with argon2 support:

% podman run -it --rm docker.io/drupalci/php-8.5-ubuntu-apache:dev php -r 'echo(password_hash("correct horse battery staple", PASSWORD_ARGON2ID));'
$argon2id$v=19$m=65536,t=4,p=1$MzFSb1Q0MVg1NDBJOHQ4Nw$SYS269U5LJL2TEBG9t/glMS83kYMKB9mU9AJ4pnyO24

Looks totally ok to me, I will commit it later tonight

btw I found OpenSSL argon is incomplete implementation so better to link it directly to the library.
so when there's no Argon2 headers some functionality is missing

I gonna slit it on commits as franken in dev repo only and looks can't build

checking for Argon2 support... yes
checking for libargon2... yes

and

checking for sodium support... yes
checking for libsodium >= 1.0.8... yes

andypost → closed merge request !55

Automatically closed - issue fixed for 2 weeks with no activity.