Module tracing

Wrapper around tracing so that tracing can be an optional dependency.

Modules

• implementation 🔒

Macros

• debug 🔒
• debug_span 🔒
• error 🔒
• error_span 🔒
• info 🔒
• info_span 🔒
• trace 🔒
• trace_span 🔒
• warning 🔒
• warning_span 🔒

Enums

• Level 🔒