wip, cartoon

...ntation/structure/visual/cross-link-restraint-cylinder.ts

src/mol-geo/representation/structure/visual/element-point.ts

...mol-geo/representation/structure/visual/element-sphere.ts

...presentation/structure/visual/inter-unit-link-cylinder.ts

...presentation/structure/visual/intra-unit-link-cylinder.ts

...resentation/structure/visual/polymer-backbone-cylinder.ts

...geo/representation/structure/visual/polymer-trace-mesh.ts

src/mol-geo/representation/structure/visual/util/polymer.ts

src/mol-geo/shape/mesh-builder.ts

src/mol-view/stage.ts