chore(bench): print bench id before running the benchmark

[soonum]

Done to circumvent criterion limitation regarding automatic truncation of long benchmark ID.
Using a println() call we ensure the complete name is displayed before benchmark execution to ease manual parsing and debugging.

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This change is 

[IceTDrinker]

One question on something that may cause parsing/display issues

@IceTDrinker reviewed 23 of 23 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @soonum)

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tfhe-benchmark/benches/shortint/glwe_packing_compression.rs line 37 at r1 (raw file):

    });

    let bench_id = format!("{bench_name}::unpack_all");

will this create parsing/display issues in Grafana ?

[soonum]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @IceTDrinker)

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tfhe-benchmark/benches/shortint/glwe_packing_compression.rs line 37 at r1 (raw file):

Previously, IceTDrinker wrote…

will this create parsing/display issues in Grafana ?

These benchmarks are not stored in database.

[IceTDrinker]

Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @IceTDrinker)