Create Technical API documentation page/sub-pages for the doc site

[smckeon-so]

We have generated API docs for the Rust and C code. We need to find a way to surface this information to the docs site visitor.

It may be that we want to link out to selected docs on docs.rs
https://docs.rs/aranya-client/latest/aranya_client/
https://docs.rs/aranya-daemon/0.4.0/aranya_daemon/

Instead of generating, consolidating and hosting them ourselves on the doc site.

• Technical APIs
  • Rust API
  • C API

[gknopf-aranya]

@smckeon-so, @ycarmy we're generating a local Doxygen docs site for the C API. Would this be worth hosting somewhere and pointing to from this docs site?