Core v24

Very small change since I've realized how annoying the video mode selection is (i.e. find sd card, copy on settings...)

Added some hotkeys. To use them go to the F11 menu and then press:
P: PAL
N: NTSC
R: RGB
A: SCANDOUBLE
D: DVI
H: HDMI
V: VGA
S: SVIDEO
C: COMPOSITE
Z: Toggle composite sync
X: Toggle scanlines