src: use uv_hrtime as tracing timestamp

Override the V8 TracingController to provide uv_hrtime based
timestamps. This allows tracing timestamps to be comparable with
process.hrtime timestamps.

Fixes: https://github.com/nodejs/node/issues/17349
PR-URL: https://github.com/nodejs/node/pull/18196


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>