Lemmings 2 graphics

Extracted by geoo from lemmingsforums.net

Tribe specific graphics:
- l2gfx: 16x8 pixel pieces that level maps are composed of (including palette in top row)
- l2tiles: Arrangements of the above into sensible terrain pieces
- l2obj: Object graphics and animation
- l2ss: Special tribe specific animations

Other graphics
- vlemms: all lemmings graphics (using cavelem palette -- these are recolored according to tribe palette)
- intern: additional universal animations
- cutscenes: Graphics from various cutscenes
