renderable schema cleanup

src/mol-gl/renderable/cylinders.ts

src/mol-gl/renderable/direct-volume.ts

src/mol-gl/renderable/image.ts

src/mol-gl/renderable/lines.ts

src/mol-gl/renderable/mesh.ts

src/mol-gl/renderable/points.ts

src/mol-gl/renderable/schema.ts

src/mol-gl/renderable/spheres.ts

src/mol-gl/renderable/text.ts

src/mol-gl/renderable/texture-mesh.ts