message: reintroduce ASA calc
diff: @@ -32,6 +32,7 @@ import { Spheres } from '../../mol-geo/geometry/spheres/spheres';
  import { Color } from '../../mol-util/color';
  import { createRenderObject } from '../../mol-gl/render-object';
  import { Membrane } from '../../mol-model-props/computed/membrane/ANVIL';
  +import { AccessibleSurfaceAreaProvider } from '../../mol-model-props/computed/accessible-surface-area';
  const parent = document.getElementById('app')!;
  parent.style.width = '100%';
  @@ -149,6 +150,10 @@ async function init() {
  await SecondaryStructureProvider.attach(ctx, structure);
  console.timeEnd('compute SecondaryStructure');
  + console.time('compute AccessibleSurfaceArea');
  + await AccessibleSurfaceAreaProvider.attach(ctx, structure);
  + console.timeEnd('compute AccessibleSurfaceArea');
  +
  console.time('compute Membrane');
  await MembraneProvider.attach(ctx, structure);
  console.timeEnd('compute Membrane');
  