Added basic slide demo

This is more of a proof to myself that it's possible than anything else
Added basic MovieAdapter w/ sliding
Made hide match slide reveal translation
Made cover view slide over a bit on reveal
Corrected sliding motions

The right section needed to slide over, rather than slide out
Added basic demo data

No actual display yet
Added basic posters to setup
Added SlidingImageView

So that the poster remains centered even as it slides over
Added BitmapCache for performance
Better solution for centering content

And added title text

This allows me to center *all* the views that are sliding, PLUS it
avoids doing new draws (since it's all translations).