Add a character controller implementation

examples2d/all_examples2.rs

@@ -10,6 +10,7 @@ use std::cmp::Ordering;
 
 mod add_remove2;
 mod ccd2;
+mod character_controller2;
 mod collision_groups2;
 mod convex_polygons2;
 mod damping2;
@@ -61,6 +62,7 @@ pub fn main() {
     let mut builders: Vec<(_, fn(&mut Testbed))> = vec![
         ("Add remove", add_remove2::init_world),
         ("CCD", ccd2::init_world),
+        ("Character controller", character_controller2::init_world),
         ("Collision groups", collision_groups2::init_world),
         ("Convex polygons", convex_polygons2::init_world),
         ("Damping", damping2::init_world),