Add rank-1 autodiff

[Bihaqo]

Add a version of autodiff which computes the function d times instead of computing once on increased rank input (at least with not implemented error so it's obvious that it should exist).

Add warning to the usual autodiff for the case when input is matrix rank-1 "Note that autodiff can brake kronecker product structure". Or maybe just try running the function on the increased rank and if fails run it d times?