Migrate 25 crates to monorepo am: 3ffa84554b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/cexpr/+/3217521

Change-Id: I2797d103df9875ebdc41045301aaaacbc81ac75e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>