Migrate 25 crates to monorepo. am: 004943ac20

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/futures/+/3241418

Change-Id: I5f30299611460b6717d6af8a365c150d696dcb49
Signed-off-by: Automerger Merge Worker <[email protected]>