adding wedge shaped option to DAGMCUniverse.bounded_universe()

[shimwell]

Description

This PR adds and boundary_type=wedge to the universe.bounded_universe method.

This is useful for making sector models of fusion reactions and I sure other models as well where we typically require a couple of reflecting planes, cylinder outside and upper and lower planes

Here is a minimal example

import openmc
universe = openmc.DAGMCUniverse(filename="/
dagmc.h5m")
bounded_universe = universe.bounded_universe(bounded_type='wedge', wedge_angles=(0, 90))
geometry = openmc.Geometry(root=bounded_universe)
mat1=openmc.Material(name="mat1")
mat1.add_nuclide("H1",1.0)
mat1.set_density("g/cm3",0.01)
materials= openmc.Materials([mat1])
settings=openmc.Settings()
model = openmc.Model(geometry=geometry,materials=materials, settings=settings)
model.export_to_model_xml()
# then plot

Fixes # (issue)

Checklist

• I have performed a self-review of my own code
• I have followed the style guidelines for Python source files (if applicable)
• I have made corresponding changes to the documentation (if applicable)
• I have added tests that prove my fix is effective or that my feature works (if applicable)

[shimwell]

Suggested change

	radius_upper_right = np.linalg.norm(
	np.array(bbox[0][0], bbox[0][1]) - np.array([0.0, 0.0])
	)
	radius_lower_left = np.linalg.norm(
	np.array(bbox[1][0], bbox[1][1]) - np.array([0.0, 0.0])
	)
	radius = max(radius_upper_right, radius_lower_left)
	radius = max(abs(bbox[0][0]), abs(bbox[0][1]), abs(bbox[1][0]), abs(bbox[1][1]))

I think this can be simplified in this cylindrical surface case

[shimwell]

@shimwell conflicts have crept in to this PR