Support a unique interface to the logger crate

[ia0]

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Currently the format for defmt and log and different. It would be much more convenient to have a unique syntax for a common (and restricted) subset of those, typically to print common types like integers, strings, and bytes.

The idea would be to change the logger crate to be a proc-macro crate, and do the format conversion logic at compile-time. The goal is that such logic: https://github.com/google/wasefire/blob/ac32ec709398c325c0d0293e84f85345123e3041/crates/protocol-usb/src/device.rs#L91-L94 would be a single line:

Some(result) => log::debug!("Reading {:02x?}", result),

See https://github.com/knurling-rs/defmt/issues/149 for a similar issue in the defmt repository.

Once fixed, we should re-enable the clippy.uninlined_format_args lint.