Usage of vm_trace!

[jopemachine]

I found several vm_trace! macros under vm/src directory while debugging codes, but I don't have an idea how to use them.

I guess those are for debugging, but they didn't print anything on the console, or write file log, when I added vm-tracing-logging to the features of vm/Cargo.toml.

And there were some compile errors which had to fix it to compile, looks like it would be good to fix this.

[youknowone]

@fanninpm @coolreader18 do you have any idea?

[jopemachine]

I found the trace! macro in the vm_trace! belongs log crate.
I can find its usage in this document.

And I made a PR to fix the compile error.