Populate bundleIDToProductMap with actual app list
Populate bundleIDToProductMap with actual app list

Summary: In order for `FBMacDevice` to work properly in between process launchs, we need to populate this mapping with actual directory content.

Reviewed By: lawrencelomax

Differential Revision: D6600888

fbshipit-source-id: 0925bdee1d73e7bdcb3ab19e3d2673af5a21bf71

facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl