Implemented better rendering of laser target hits and fixed some bugs

demos/optical_bench/src/Optix Files/laser_target_material.cu

demos/optical_bench/src/Optix Files/skybox.cu

demos/optical_bench/src/menu_button.hpp

demos/optical_bench/src/menu_slider.hpp

demos/optical_bench/src/menu_switch.hpp

demos/optical_bench/src/optical_bench.cpp

demos/optical_bench/src/ray_pass.cpp

demos/optical_bench/src/ray_pass.hpp

library/phx/resources/types/material.cpp

resources/models/opticalBench/laser/target.blend

resources/models/opticalBench/laser/target.blend1

resources/models/opticalBench/laser/target.mtl

resources/models/opticalBench/laser/target.obj

resources/models/opticalBench/laser/texture.png

resources/models/opticalBench/menu/Tablet.obj

resources/models/opticalBench/room/lab.mtl

resources/models/opticalBench/room/lab.obj

resources/shader/phong.frag