HOPKINS: Respect pitch when drawing on OSystem's screen surface.
GRAPHICS: Fix incorrect parameter order for getBasePtr.

This caused createThumbnail() to crash, e.g. when saving in the
Kyrandia engine. Probably other engines as well.
KYRA: Fix Kyra3 family album animation glitch, CID 1004139

The first page wasn't animated, and it's likely that some of the
other right-page animations were slightly off as well.