Move 2D benchmarks into their own directory/crate.

examples2d/all_examples2.rs

@@ -11,18 +11,12 @@ use rapier_testbed2d::Testbed;
 use std::cmp::Ordering;
 
 mod add_remove2;
-mod balls2;
-mod boxes2;
-mod capsules2;
 mod debug_box_ball2;
 mod heightfield2;
 mod joints2;
-mod kinematic2;
+mod platform2;
 mod pyramid2;
 mod sensor2;
-mod stress_joint_ball2;
-mod stress_joint_fixed2;
-mod stress_joint_prismatic2;
 
 fn demo_name_from_command_line() -> Option<String> {
     let mut args = std::env::args();
@@ -58,21 +52,12 @@ pub fn main() {
 
     let mut builders: Vec<(_, fn(&mut Testbed))> = vec![
         ("Add remove", add_remove2::init_world),
-        ("Balls", balls2::init_world),
-        ("Boxes", boxes2::init_world),
-        ("Capsules", capsules2::init_world),
         ("Heightfield", heightfield2::init_world),
         ("Joints", joints2::init_world),
-        ("Kinematic", kinematic2::init_world),
+        ("Platform", platform2::init_world),
         ("Pyramid", pyramid2::init_world),
         ("Sensor", sensor2::init_world),
         ("(Debug) box ball", debug_box_ball2::init_world),
-        ("(Stress test) joint ball", stress_joint_ball2::init_world),
-        ("(Stress test) joint fixed", stress_joint_fixed2::init_world),
-        (
-            "(Stress test) joint prismatic",
-            stress_joint_prismatic2::init_world,
-        ),
     ];
 
     // Lexicographic sort, with stress tests moved at the end of the list.