added glsl qualifiers

src/mol-gl/shader/utils/attenuation.glsl

src/mol-gl/shader/utils/decode-float-rgba.glsl

src/mol-gl/shader/utils/inverse.glsl

src/mol-gl/shader/utils/oren-nayar-diffuse.glsl

src/mol-gl/shader/utils/phong-specular.glsl

src/mol-gl/shader/utils/read-from-texture.glsl

src/mol-gl/shader/utils/transpose.glsl