sci-libs/brial: new library for polynomials over boolean rings.
This library is maintained upstream and in the sage-on-gentoo overlay
by François Bissey, but it is well-packaged and passes its tests. It
is a dependency of SageMath, and the system copy will eventually be
usable by Sage, so now is a good time to adopt it. The overlay ebuild
was used with minimal changes.
Closes: https://bugs.gentoo.org/713330
Package-Manager: Portage-2.3.89, Repoman-2.3.20
Signed-off-by: Michael Orlitzky <mjo@gentoo.org>