With intent to replace BitBuffer.
This version is optimised for binary size and readability of the parsers
at the cost of slower parsing of invalid bitstreams
Bug: None
Change-Id: Ib054e2a7758b9a69cbf2559e739465b104a7dcf3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/230244
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34886}
