Crate call_trace_macro

Provides macros for the callback-trace and callback-trace-tls crate.

Attribute Macros

trace	The #[trace] macro. Needs to be applied to function definitions, and will invoke callbacks managed by the the callback-trace before and after the functions body.
trace_with	The #[trace_with] macro. Needs to be applied to function definitions, and will invoke hte Trace interface on the user-provided expression.