message: fix webgl stats on render-item disposal
diff: /**
  - * Copyright (c) 2018-2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
  + * Copyright (c) 2018-2021 mol* contributors, licensed under MIT, See LICENSE file for more info.
  *
  * @author Alexander Rose <alexander.rose@weirdbyte.de>
  */
  @@ -338,6 +338,11 @@ export function createRenderItem<T extends string>(ctx: WebGLContext, drawMode:
  });
  attributeBuffers.forEach(([_, buffer]) => buffer.destroy());
  if (elementsBuffer) elementsBuffer.destroy();
  +
  + stats.drawCount -= drawCount;
  + stats.instanceCount -= instanceCount;
  + stats.instancedDrawCount -= instanceCount * drawCount;
  +
  destroyed = true;
  }
  }
  