Add multipath stream-path affinity, path quality metrics, and path management API
Add multipath stream-path affinity, path quality metrics, and path management API: a task in LegoFlow-SWE (Harbor dataset). The PICOQUIC VERSION macro must be updated to reflect the new API version.
The task
The `PICOQUIC_VERSION` macro must be updated to reflect the new API version.
Part of Lego-X/LegoFlow-SWE.