Add mc-sgx-sync crate

[nick-mobilecoin]

No description provided.

[nick-mobilecoin]

Current dependencies on/for this PR:

• main
  • PR Update CI for SGX SDK action update #14
    • PR Move panic to panic/abort #13
      • PR Add untrusted side of stderr from enclave #15
        • PR Add mc-sgx-io #22
          • PR Add mc-sgx-panic-log #24
            • PR Add mc-sgx-panic crate for common panic handling #30
              • PR Add panicking::panic_count to mc-sgx-panic #31
                • PR Update CODEOWNERS file #32
                  • PR Add panicking::panicking() function #33
                  • PR Add public function thread::panicking() #34
                  • PR Add mc-sgx-sync crate #35 👈
                  • PR Add poison.rs to mc-sgx-sync crate #36
                  • PR Add sys module to mc-sgx-sync #39
                  • PR Add mutex.rs to mc-sgx-sync crate #40
                  • PR Use a static buffer for panic messages #41
                  • PR Add mc-sgx-sync::sys::locks::Condvar #42
                  • PR Add Condvar to mc-sgx-sync crate #43
                  • PR Add mc-sgx-sync::sys::locks::RwLock #44
                  • PR Add RwLock to mc-sgx-sync #45
                  • PR Add example usage for mc-sgx-sync and std::sync #46
                  • PR Merge panic-abort and panic-log crates into mc-sgx-panic #48
                  • PR Prevent recursive panics from happening #50
                  • PR Remove unneeded traits on sys types #51
        • PR Rename mc-sgx-io to mc-sgx-io-untrusted #21

This comment was auto-generated by Graphite.

[codecov-commenter]

Codecov Report

Merging #35 (2b1518c) into nick/thread-panicking (240ef50) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@                    Coverage Diff                    @@
##           nick/thread-panicking      #35      +/-   ##
=========================================================
+ Coverage                  91.91%   91.94%   +0.03%     
=========================================================
  Files                          7        8       +1     
  Lines                        235      236       +1     
=========================================================
+ Hits                         216      217       +1     
  Misses                        19       19              

Impacted Files	Coverage Δ
sync/src/lib.rs	100.00% <100.00%> (ø)

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[nick-mobilecoin]

✅ This pull request merged successfully as part of a Graphite job
Stack job ID: HgREqLwB7JxPkCuBxNeY.
See details on graphite.dev

[nick-mobilecoin]

@varsha888 bumping you for review since I needed to restack after your review