This extracts out the shared libraries and `.node` native modules to a
temp file and opens them from there. **This means that this
implementation will not work in every scenario.** For example, a library
could require other files that only exist in the in-memory file system.
To solve that, we'll introduce
https://github.com/denoland/deno/issues/28918 later or adapt this
solution to solve more issues.
Additionally, this will not work when run on readonly file systems.
This is achieved by storing CJS export analysis ahead of time in the
executable, which should also improve the performance of `denort` by
this never being done anymore (I'm too lazy atm to bench this, but it
will be significant for some programs).
This slightly degrades the performance of CJS export analysis on
subsequent runs because I changed it to no longer cache in the DENO_DIR
with this PR (denort now properly has no idea about the DENO_DIR). We'll
have to change it to embed this data in the binary and that will also
allow us to get rid of swc in denort (will do that in a follow-up PR).
