[New Plugin]: Typst

### Is your feature request related to a problem? Please describe

No

### Describe the proposed solution

Implement plugin for [Typst](https://github.com/typst/typst).

### Describe similar `asdf` features and why they are not sufficient

N/A.

### Describe other workarounds you've considered

Manually install and manage Typst versions.

No repository files or tests are named. Start by reviewing existing asdf community plugin implementations and their validation conventions, then determine the entry points needed to install and manage Typst versions; done means the plugin is accepted by the repository's checks and supports those version-management workflows.

Written by the indexing model from the issue text.