Parse Quake 2 map.

Signed-off-by: Kristian Duske <kristian.duske@gmail.com>
Wal texture loader

Signed-off-by: Kristian Duske <kristian.duske@gmail.com>
More Quake 2 support and crude way of game selection.

Signed-off-by: Kristian Duske <kristian.duske@gmail.com>
Quake 2 texture loading and rendering.

Signed-off-by: Kristian Duske <kristian.duske@gmail.com>