Manually verify analytic derivatives before major relases
optim = ('DerivativeCheck', 'on','FiniteDifferenceType','central')
allows checking the correctness of analytic Jacobians for
method_of_moments\RBC\RBC_MoM_GMM_gradient_optim.mod. These tests would fail as Matlab does not allow setting the tolerance lower than the default 1e-6, while we are at 1e-5. But we should nevertheless manually check whether we are within a reasonable tolerance.