* ensure brute force ray intersection works in the same space as kd-tree intersection
* add additional tests for ray casts against meshes using brute force approach
* update api and add some additional test cases
* comment tidy-up and other small updates/fixes for ray intersection code
* fix issue with values at the end of a ray
* updates to kd-tree ray intersection
* update tests for kd-tree
* add one more test for kd-tree intersection
* updates to ModelKdTree following review feedback
* improve api doc comment for RayIntersection in ModelKdTree
* updates following review feedback
* update .clang-format to stack parameters if they do not all fit on one line
Tom Hulton-Harrop
jiaweig
alexpete