Update: AssetStorage now respects compression settings for Save()
Originally it was doing nothing (because it picked a compression format as textureFormat, but then set textureCompression to Uncompressed), but now it'll try to compress on request. We only have 1 place where we attempted to compress the terrain normal map, but I'm disabling that explicitly (as it would lead to fudged normals).
Tests: Baked Heightmap on CraggyIsland - spat out the same formatted texture as before