The `Tangle` source would create a point field generically named
`nodevar`. This name was not indicitive of the data or its source. Thus,
the output point field has been renamed `tangle`.
The `Tangle` source was also creating a cell field (named `cellvar`).
This field was really just a mirror of the cell indices (counting from 0
on up). This field has been removed from the input. If you want such a
field, you can now use the `GenerateIds` filter to add it to any data
set.
VTK-m has been updated to replace old per device worklet testing executables with a device
dependent shared library so that it's able to accept a device adapter
at runtime.
Meanwhile, it updates the testing infrastructure APIs. vtkm::cont::testing::Run
function would call ForceDevice when needed and if users need the device
adapter info at runtime, RunOnDevice function would pass the adapter into the functor.
Optional Parser is bumped from 1.3 to 1.7.
