Fix compilation of libexpat with latest cc crate

[uttarayan21]

Changes in this pull request

• Use compile_intermediates from cc crate to compile libexpat (and update cc )
  • Refactor C/C++ build process for expat, zlib, and C++ XMP Toolkit #197
  • Update cc requirement from > 1.0.60, <=1.0.83 to > 1.0.60, <=1.0.97 #211
• Copy third-party items to $OUT_DIR so the manifest dir can remain untouched
  • which comes with the benefit of being able to use read-only vendored source
  • as well as being able to use nix build system for dependent crates

Checklist

• This PR represents a single feature, fix, or change.
• All applicable changes have been documented.
• Any TO DO items (or similar) have been entered as GitHub issues and the link to that issue has been included in a comment.

[scouten-adobe]

@uttarayan21, thank you so much for this patch. I'm closing this PR, but your work has been reflected in three PRs that I merged today: #216, #217, and #221. I'll be releasing 1.8.0 in a few hours and I hope that will be useful for you.

[scouten-adobe]

@uttarayan21 I've released version 1.8.0 of the crate which incorporates these changes. Please let me know if you find any remaining issues.