Latest draft-16 support

Draft-16 snapshot for frontline Apr-24-2026

Draft-16 snapshot for frontline Mar-09-2026

Merge pull request #155 from Quicr/subgroups

Add subgroup support with merge of latest main

Merge pull request #127 from Quicr/update-libquicr

Update libquicr

Supports MoQT draft-11

Frontline demo July-2025

bump version

Replaced cantina with spdlog. (#64)