This filter is designed to work on vectors of many sizes. It was written
when selecting field types was the responsibility of the policy. It is
now the responsibility of the filter to specify possible field types.
This change is required to compile the MomentInvariants module for VTK
without policies.
TypeListTagAll only defines vectors up to size 4, while the default
filter traits do not restrict input types at all.
Since the moments computation may use 6- or 9-tuple vecs, this
restriction is breaking those usecases.
