add .name property to ShaderCode

src/mol-canvas3d/passes/multi-sample.ts

src/mol-canvas3d/passes/postprocessing.ts

src/mol-gl/compute/histogram-pyramid/reduction.ts

src/mol-gl/compute/histogram-pyramid/sum.ts

src/mol-gl/compute/marching-cubes/active-voxels.ts

src/mol-gl/compute/marching-cubes/isosurface.ts

src/mol-gl/shader-code.ts

src/mol-math/geometry/gaussian-density/gpu.ts