Some pipeline feature requests

[mlohry]

We have some legacy capability to extract specific topologically-2D sections that have been useful, and we'd like to be able to achieve the same via ascent. In particular it'd be great to have, copying the FUN3D manual,

• ‘cylinder’ samples a cylindrical surface. It requires cylinder_face1, cylinder_face2, and cylinder_radius.
• ‘cone’ samples a conic surface. It requires cone_face1, cone_face2, cone_radius1, and cone_radius2.
• ‘circle’ samples a circle. It requires circle_center, circle_normal, and circle_radius.

at least circle I think can be constructed by taking a sphere clip of a plane, but I'm not sure about the others.

[cyrush]

We have cylinder slice, here is an example:

ascent/src/tests/ascent/t_ascent_slice.cpp

Line 939 in 7c4d249

pipelines["pl1/f1/type"] = "slice";

We will look into adding cone.

I also want circle via plane + sphere (or plane + cylinder).
The vtk-m clipping tables lack the cases for surface to lines. They are working on this for a future release.
Here is a related issue:
#1388