[games/roll] Require bison and pkg-config to buiild

Summary: Ref T2037.

Test Plan:
This is aligned with version submitted upstream,
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281872

Tested with Poudriere.

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T2037

Differential Revision: https://devcentral.nasqueron.org/D3521