Add Frame Limiter for Frameskip

[GuilhermeGS2]

The Frameskip has a problem, when we reached more than 60FPS, the graph starts to repeat. I wonder if there is like adding a frame limiter to 59 or 60FPS.
I use PPSSPP Android.

[ket_kul]

Also I think it will be better to add frameskip level...

For example :
- 1 Frame-on, 1 frameskip
- 2 Frame-on, 1 frameskip
- 3 Frame-on, 1 frameskip
- etc

We will be able to choose different skipped frame for different games. And adjust the frameskip limit.
Because if some game have problem with default frameskip level we just need to reduce it without changing the performance quality

CMIIW^^