[boost] Sam review scheduled

Hi all, I'm happy to announce that the Sam library, featuring asio-based synchronization primitives, is being proposed for Boost inclusion. Repo: https://github.com/klemens-morgenstern/sam Docs: https://klemens.dev/sam/ The library is being proposed by Klemens Morgenstern. The review will take place between May the 29th (Monday) and June the 8th (Thursday). I will be managing the review. Boost.Sam offers async asio-based synchronization primitives, similar to standard mutex, condition_variable, semaphore and barrier. It's geared towards library writers that require fine-grain control over their synchronization operations. You can contact both me and the author by mail or on the cpplang Slack. Kind regards, Ruben.