Add skipEntries option to turbotrace (#45410)
In some apps like `vercel/site`; tracing the entries is unnecessary but
is really time/memory consuming. In this case, we should expose an
option to disable tracing the entries.
Closes WEB-523
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
