Please add unboxables

[digikar99]

You can fetch from https://github.com/digikar99/unboxables

unboxables is a thin wrapper around cffi:foreign-alloc and cffi:foreign-free coupled by trivial-garbage:finalize to provide arrays of contiguously allocated structures in common lisp.

[quicklisp]

Failure log here: http://report.quicklisp.org/2023-05-24/failure-report/unboxables.html

[digikar99]

Should be fixed now.