Move `data/shaders` to `data/shaders/glsl`
Move `data/hlsl` to `data/shaders/hlsl`
Fix up shader paths in the cpp files to point to the new glsl location.
`data/shaders/hlsl/compile.py` still overwrites the glsl .spv files (for
now).
Issue: #723
nv_ray_tracing_basic.cpp
- update to 3 component vertex data (4 component isn't supported)
- update type to TOP_LEVEL when building the TLAS
nv_ray_tracing_reflections.cpp
- update AS info type to TOP_LEVEL when building the TLAS
nv_ray_tracing_shadows.cpp
- update AS info type to TOP_LEVEL when building the TLAS
Validation layer changes coming soon :)
