The yarn::containers namespace holds STL-like container implementations that are optimized for avoiding heap allocations.

Bug: b/139010488
Change-Id: I9620488c607742132aff9dfdd35a7582a82bf687
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/34814Tested-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>