Add CVPixelBuffer support to visualize command
Add CVPixelBuffer support to visualize command

Summary: I often run this three-liner to `visualize` a `CVPixelBuffer` so figured we could save some time by building it into the `visualize` command.

Differential Revision: D22653607

fbshipit-source-id: bf03acb4e091b8c93b7e1c73ea8b065755c706ad

facebook/chisel,facebook/chisel,facebook/chisel