async_wrap: allow user to pass execution_async_id

Allow the user to pass in an execution_async_id instead of always
generating one. This way the JS API can be used to pre-allocate the
execution_async_id when the JS object is instantiated, before the native
resource is created.

Also allow the new execution_async_id to be passed via asyncReset().

PR-URL: https://github.com/nodejs/node/pull/14208


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>