Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>

The files are yet to be renamed

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>

Re #19154

Re #19154

The Monte Carlo method now has two methods: one runs the simulation a
fixed number of iterations, the other manages the first and checks for
convergence.

Re #19154

Monte Carlo is used as the general (fallback)s method. Also, code for
the triangular mesh case is included, but unused. The way we create
surfaces now doesn't produce consistent surface normal directions. This
makes the triangular method fail.

Re #19154

The test now includes negative Z coordinates as well.

It will give clarity in the test and also fail in release mode.

Avoid calls to exit that could cause the program to just stop without
any warning.

Refs #16044

Assign the correct rule number when passing a single rule to
Object::procPair. The method detected that only one rule was present
correctly but failed to tell the external code which one it had found.
This led to the rule map being updated incorrectly.

The commit also switches the order in which the rules are assigned in
Intersection constructor to be consistent with the rest of the class
and the Union operation.

Refs #9842

This should avoid having to go through the object component to get access
to the shape when testing for intersections.
Refs #9842

Refs #10178

Refs #3175. Sorry for the huge commit but certain things require Matrix to be in Kernel. Given how Quat, V3D and Matrix inter cooperate it seemed sensible for them to be in the same place and arguably this is where they belong anyway.

Modify the SolidAngle calculation for cylinders to EXCLUDE the end caps so that it closely approximates the effects of shadowing for stacked cylinders. Also cleaned up some indentation in renderinging code and made an error message clearer in IPropertyManager. Re #2596