Cylindrical Mesh: Arbitrary Orientation

[yrrepy]

Description

Currently CylindricalMesh defaults to height axis vector oriented along the Z-axis.
CylindricalMesh orientation can be changed with filters, see below, but MeshSource and mesh.material_volumes cannot leverage the filter rotation

<mesh id="4" type="cylindrical">
  <r_grid>0.0 5 10 20 </r_grid>
  <phi_grid>0.0 6.283185307179586</phi_grid>
  <z_grid>-100 -50 50 100</z_grid>
 <origin>0.0 0.0 0.0</origin>
</mesh>

<filter id="2" type="mesh" rotation="-90.0 0.0 0.0">
  <bins>4</bins>
</filter>

As was done for CylindricalIndependent, we should implement arbitrary orientation.

There are other similar types that lack this kind of arbitrary orientation support, grouped:

1. SphericalMesh, CylindricalMesh
2. SphericalIndependent (CylindricalIndependent had r_dir, z_dir implemented, Spherical did not)
3. Follow-ups (WeightWindows)

Probably best broken up into multiple PRs matching the types above.

Compatibility

new keywords
r_dir, z_dir, polar_dir, azimuthal_dir etc