Fullscreen Problem(Cannot use fullscreen option)

[Hykem]

I've introduced a couple of changes in r2132. First of all, I've finally removed the F4 switch method and now fullscreen has it's own popup menu!
I've also moved the display related settings to an appropriate "Display" menu, so you can now find the anti-alias, resolution and fullscreen options under Options > Configuration > Display.
Now, when lauching JPCSP in fullscreen mode, just left-click and a new menu will popup (it's still very basic, since it's mostly for testing). I've also done some work on screen resize, which still needs some testing, but in the end it should bring a great improvement to the fullscreen feature and fix the issue reported by Finzy and corvenik.
Also, the Anisotropic filter option is now saved as well, so you don't need to press it again after starting JPCSP.