vm: implement vm.measureMemory() for per-context memory measurement

This patch implements `vm.measureMemory()` with the new
`v8::Isolate::MeasureMemory()` API to measure per-context memory
usage. This should be experimental, since detailed memory
measurement requires further integration with the V8 API
that should be available in a future V8 update.

PR-URL: https://github.com/nodejs/node/pull/31824
Refs: https://github.com/ulan/performance-measure-memory


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>