State of the main after non-breaking changes to the API from broken-stdlib and unstable got merged #498 and #491. Strategy for convergence described in #435.

This is a release with algorithms added into unstable or broken-stdlib without Scheduler affinity in unifex::task and without v2/async_scope or related algorithms.

New algorithms:

• async_auto_reset_event
• detach_on_cancel
• fused_stop_source utility draft #497
• let_value_with_stop_token
• variant_sender
• when_all_range

Full Changelog: v0.0.1...v0.0.2