feat: solver improvements + release v0.29.0 (#876)

* feat: solver improvements

* feat: add function to get/set whether gyroscopic forces are enabled on a rigid-body

* chore: switch to released versions of parry and wide instead of local patches

* fix cargo doc

* chore: typo fixes

* chore: clippy fix

* Release v0.29.0

* chore: more clippy fixes

src_testbed/save.rs

@@ -3,7 +3,7 @@ use crate::camera2d::OrbitCamera;
 #[cfg(feature = "dim3")]
 use crate::camera3d::OrbitCamera;
 use crate::settings::ExampleSettings;
-use crate::testbed::{RapierSolverType, RunMode, TestbedStateFlags};
+use crate::testbed::{RunMode, TestbedStateFlags};
 use serde::{Deserialize, Serialize};
 
 #[derive(Serialize, Deserialize, PartialEq, Debug, Default, Clone)]
@@ -13,22 +13,6 @@ pub struct SerializableTestbedState {
     pub selected_example: usize,
     pub selected_backend: usize,
     pub example_settings: ExampleSettings,
-    pub solver_type: RapierSolverType,
     pub physx_use_two_friction_directions: bool,
     pub camera: OrbitCamera,
 }
-
-#[cfg(feature = "dim2")]
-#[derive(Serialize, Deserialize, PartialEq, Debug, Default, Clone)]
-pub struct SerializableCameraState {
-    pub zoom: f32,
-    pub center: na::Point2<f32>,
-}
-
-#[cfg(feature = "dim3")]
-#[derive(Serialize, Deserialize, PartialEq, Debug, Default, Clone)]
-pub struct SerializableCameraState {
-    pub distance: f32,
-    pub position: na::Point3<f32>,
-    pub center: na::Point3<f32>,
-}