* add unit tests for embree
* discovered bug with intersect beam and wrote unit test for the fix
* Update EmbreeIntersector.cpp
updated test to catch2
* Update CMakeLists.txt
removed tab to rerun CI
* Update CMakeLists.txt
* Update CMakeLists.txt
* caching value of BUILD_TESTING before resetting it
* Try to build embree statically on Windows.
* Try to enable testing early on.
* Update Catch2 version.
* Set CMake build type.
* Trying to build embree statically.
* Fix static compilation of embree on Windows.
* Cleanup.