Polished Wall Parity

Currently, wall blocks exist for polished blackstone and deepslate, and soon polished tuff, however other "polished" variants of materials do not have an equivalent. This is especially significant for polished diorite, as lighter tones are underrepresented in extant wall varieties. The addition of polished andesite, granite, and diorite walls would be useful for builders who prefer these textures to the unpolished variants, and would come at a good time with the upcoming implementation of polished tuff walls. I would also include smooth sandstone and smooth red sandstone for similar reasons.