* `TlsProfile` is better off sticking to the style used in standards.
* `bearssl-sys` bindings can't be annotated with safety as they are
autogenerated and have the same safety properties with the library
itself.
* The `bearssl-sys` crate is basically usable at this point.
* The `bearssl` crate itself needs a lot work before being usable. The
design needs heavy iterations, considerationg and love.