Enables named call wrapping for labelling profile traces.

When named call wrapping is enabled all JAX ops executed in a Module will be run under jax.named_scope. The Module class name will show up around the operations belonging to that Module in the Tensorboard profiling UI, simplifying the profiling process.

Note that jax.named_scope only works for compiled functions (e.g.: using jax.jit or jax.pmap).