Migray arrayvec to monorepo.

Bug: http://b/339424309
Test: treehugger
Change-Id: If1c03006e505406b2220f596184ae155889eee82
26 files changed
tree: c5b917ea03588e0cde0b3f78d200368f4508010f
  1. crates/
  2. pseudo_crate/
  3. .gitignore
  4. METADATA
  5. OWNERS
  6. PREUPLOAD.cfg