only add src files & line numbers when in 'debug mode'

[zeroXbrock]

Motivation

resolves #403

Solution

• parse RUST_LOG into tracing::Levels and check for level > tracing::Level::INFO
  • Level implements PartialOrd so we can compare them
  • any level > INFO qualifies as "debug mode" (e.g. TRACE)
• new struct in cli TracingOptions holds our preferences and passes relevant config params to whichever tracing pipeline we're running

PR Checklist

• Added Tests
• Added Documentation
• Ran cargo +nightly clippy --workspace --lib --examples --tests --benches --all-features --locked --fix
• Ran cargo fmt --all
• Note breaking changes in PR description, if applicable
• update changelogs
  • Update CHANGELOG.md in each affected crate
  • add a high-level description in the root changelog