Please add Fresnel

[ruricolist]

Fresnel enables composable bidirectional translation of data structures.

https://gitlab.com/GrammaTech/Mnemosyne/fresnel

[quicklisp]

Failure log here: http://report.quicklisp.org/2021-04-22/failure-report/fresnel.html

[ruricolist]

This should be fixed now.