create freebsd package framework and git action job

[cosmicpsyop]

This needs to be retested once the freebsd compile adjustments have been merged. The job does take some time since virtual machines are nested i.e. ubuntu launching kvm freebsd. gmake -j4 or any use of nproc on freebsd seem fragile.

While the build and run from sources functions as documented an outstanding issue is locating the package offering libstdc++ without fishing through package gcc for the pkg install use case.

This is a sample job from a functioning branch https://github.com/cosmicpsyop/strfry/actions/runs/7205794196

Documenting working branch and how it was built locally https://github.com/hoytech/strfry/compare/master...cosmicpsyop:strfry:feature/freebsd-support-four?expand=1#diff-6f2adbfa3a8863a041c5953f37db9c434866c90dd11b5b866c23c1c5a87f3e5cR31

[hoytech]

Thanks!