rustic plugin for asdf and mise version managers

asdf plugin add rustic

mise plugin add rustic

Ceck out the asdf readme for instructions on how to install and manage versions of rustic.

Ceck out the mise docs for instructions on how to install and manage versions of rustic.

• Add support for additional machine types that support gnu
• Windows support? Mise supports it, but it doesn't look like asdf does.

Based on xataz/asdf-restic