Add option to print Point clouds to 3D PDF.

https://communities.bentley.com/products/microstation/microstation_printing/w/wiki/19375/point-cloud-force-rasterized-setting-in-print-dialog-box
https://communities.bentley.com/products/microstation/microstation_printing/f/printing-and-plotting-forum/77295/3d-plotting-with-point-cloud