gh-35830: Bliss spkg config
Provide spkg-config for bliss, with minimal version 0.77.
Depends on #35344, where Sage's bliss is bumped to 0.77
with the necessary API changes.
Fixes #35829
URL: https://github.com/sagemath/sage/pull/35830
Reported by: Dima Pasechnik
Reviewer(s): Dima Pasechnik, Matthias Köppe
