impl tiger demo
fix some convex maker bug
cache edges for the vertex raster
impl analyze convex concour for path
fix slope overflow for vertex raster
impl analyze curve convex contour
using tb_remove_if for finishing the raster contour
optimizate to append points for the vertex raster
rename demo
fix the intersection precision for the vertex raster
fix some compile error for linux x64
remove some codes
update tbox for linux x64
add some ignored demo files
add libpolarssl for linux x64
fix some bug for glut and sdl
fix compile error for the demo
impl finish the contour intersection for the convex maker
fix append contour points bug
optimizate to find the contour index