It is no longer possible to enable timestamping programatically

[joaofl]

Description of the Issue

Before 1.0.0.beta-4, I used to enable timestamping with zenoh::Config. With the new release (beta4) it is no longer possible, but only with zenoh_config::Config, which in turn cannot be used to open a session.
It is not clear the relationship between the two config constructors, and how to go from one to the other one.

See some annotated code that exemplify my issue more clearly:

fn setup_zenoh() -> Result<zenoh::Session, zenoh::Error> {
    let mut config_ext = zenoh_config::Config::default();
    config_ext.timestamping.set_enabled(Some(ModeDependentValue::Unique(true)));

    let mut config = zenoh::Config::default();
    // Below line no longer compiles
    //config.timestamping.set_enabled(Some(ModeDependentValue::Unique(true)));

    println!("Opening session...");
    // Below line does not work
    //let session = zenoh::open(config_ext).wait().unwrap();

    let session = zenoh::open(config).wait().unwrap();
    Ok(session)
}

When debugging, I can see that the same config structure is now inside this tuple 0 inside config:

And when I try to explicitly convert one into the other, I get this issue:

the trait bound `zenoh::Config: From<zenoh_config::Config>` is not satisfied
required for `zenoh_config::Config` to implement `Into<zenoh::Config>`
required for `zenoh::Config` to implement `TryFrom<zenoh_config::Config>`

To reproduce

Run the code snippet attached.

System info

Fedora 39
zenoh = "1.0.0-beta.4"
zenoh-config = "1.0.0-beta.4"
zenoh-ext = "1.0.0-beta.4"

[joaofl]

Enabling internal_config made the config accessible again:

zenoh = {version = "1.0.0-beta.4", features = ["internal_config"] }

and the code below works again:

fn setup_zenoh() -> Result<zenoh::Session, zenoh::Error> {
    let mut config = zenoh::Config::default();
    config.timestamping.set_enabled(Some(ModeDependentValue::Unique(true)));

    let session = zenoh::open(config).wait().unwrap();
    Ok(session)
}