>>304897515
for a roughness map, you'll want to use the autodesk shader, and then grab a tiling grunge texture from the internet and adjust the exposure in an image editing program, whiter for a rougher glass, and darker for a smooth glass.
for normal maps, go to google and search something like "glass normal map" or "plastic normal map", and adjust the intensity and tiling of the texture in unity once you're able to see it in your scene.
note that you'll need a baked reflection probe in the scene for the material to display properly.