Fix batch mul issue that appears in recursive merge verifier

[ledwards2225]

The Ultra arithmetized recursive merge verifier circuit fails due (I think) to a quirk in the Ultra batch mul. Reproduce this in a minimal test to diagnose then resolve.

[Rumata888]

Can be fixed now with with_edgecases argument

barretenberg/cpp/src/barretenberg/stdlib/primitives/biggroup/biggroup_impl.hpp

Line 786 in 43cfa7b

element<C, Fq, Fr, G> element<C, Fq, Fr, G>::batch_mul(const std::vector<element>& _points,