Policy Plus - POL import

In continuing to fulfill the Policy Plus mission of providing convenient ways to share policy settings, today I wrote an Import POL feature. It's really simple: it just lets you browse for a POL file, asks you which section it belongs to, then applies it to the appropriate IPolicySource using the same method as the Save routine.

Next, I'll see about a way to export all currently-existing policy settings as a POL (in case the current source is a live Registry).