Revamped old eXtremeUI target window

[MacDaddy62]

Adding the NPC cast bars and implied target effects are a big improvement. I did not expect anyone to respond so quickly with such an improvement. Thanks a lot. It could be better still in a few ways though:

1. The cast bars could be brighter in color to make it more obvious when the mob is casting (right now they are gray).

2. The implied target's name and hp bar is now shifted a bit to the right of where it should be (see attached screenshot).

3. I still can't right-click the target window.