Provide an initial example/snippet for RUST log crate usage

[rmaddikery]

Code snippet shared in the mw::log repo:
eclipse-score/inc_mw_log#1

[rmaddikery]

@simon-acc
Can you please share the link to the RUST log crate for the fascade?

[rmaddikery]

Found it: https://docs.rs/defmt/latest/defmt/

[simon-acc]

@rmaddikery sorry, I missed the update here. Note that the link you shared is for defmt, a logging framework optimized for embedded systems. The semi-official logging facade used throught the ecosystem is this:
https://docs.rs/log/latest/log/

[simon-acc]

Please find the example of using a C++ logger from the Rust logging facade in this PR:
eclipse-score/inc_mw_log#3

[FScholPer]

@TL-> no project is assigned

[rmaddikery]

#722 (comment)