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
There is assertion fail in negativeviewportheight (AMD GPU). The example create two VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER for descriptorSet, but descriptorCount is one in descriptorPool.
