Cubic hermite splines

[dpugmire]

Create and evaluate cubic hermite interpolating splines.
These splines interpolate a set of given points. The parameter values for the interpolation can be user specified, or it will calculate a chord-length parameterization.

[dpugmire]

@kmorel does this look ok?

[dpugmire]

@vicentebolea it looks like the cuda tests are failing. Are things ok on the testing side?

[kmorel]

@vicentebolea I have been seeing the Cuda dashboards fail a lot recently from what looks like an inability to use the device. Sometimes it works, sometimes it does not.

It might be that one of the runners, athena-nvidia-a100-0, is not working correctly. When I look at other PRs with a different runner, voltar-nvidia-a100-0, it seems to work correctly. Who do we contact if there seems to be something wrong with the runners?

Here are some examples of jobs:

• athena (bad): https://gitlab.spack.io/viskores/viskores/-/jobs/16506643
• voltar (good): https://gitlab.spack.io/viskores/viskores/-/jobs/16505183

[kmorel]

This PR should also really have a changelog added to it.

[vicentebolea]

@vicentebolea I have been seeing the Cuda dashboards fail a lot recently from what looks like an inability to use the device. Sometimes it works, sometimes it does not.

It might be that one of the runners, athena-nvidia-a100-0, is not working correctly. When I look at other PRs with a different runner, voltar-nvidia-a100-0, it seems to work correctly. Who do we contact if there seems to be something wrong with the runners?

Here are some examples of jobs:

* athena (bad): https://gitlab.spack.io/viskores/viskores/-/jobs/16506643

* voltar (good): https://gitlab.spack.io/viskores/viskores/-/jobs/16505183

@kmorel we can pin down the job to one of these runners for the time being. As for who to contact it would be Luke from UO (or Sameer). Email or the HPSF slack is how I have been communicating with them outside of the HPSF CI meetings

[kmorel]

The windows build is still being picky about data type conversion. There are a few more fixes left.