Add test for unity_zpq_mul_unit_p_pow function
Add test for unity_zpq_mul_unit_p_pow function

jpflori/flint2,wbhart/flint2,dsroche/flint2,fredrik-johansson/flint2,jpflori/flint2,dsroche/flint2,fredrik-johansson/flint2,dsroche/flint2,fredrik-johansson/flint2,wbhart/flint2,jpflori/flint2,wbhart/flint2,dsroche/flint2,jpflori/flint2