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Move 'internalBinding('heap_utils').createHeapDump()' to user land #23328

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@paulrutter

This feature request comes from discussion in nodejs/diagnostics#239; ideally there would be a public API in nodejs that offers creating heapdumps.
There are several modules around (node-heapdump, v8-profiler, node-oom-heapdump etc) that offer this functionality, but it would make nodejs more mature if this is available in the public API.

@joyeecheung mentioned a way to generate a heapdump without help of an external module, but this seems a bit convoluted.

Phase 2 would be to have a way to hook into V8 isolate->SetOOMErrorHandler(OnOOMError); from JS code, so a user can define custom actions in case of an out of memory. I will create a separate feature request for that one.

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    inspectorIssues and PRs related to the V8 inspector protocol.v8 engineIssues and PRs related to the V8 dependency.

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