Make light cascades and tonemapping luts pub (#19189)

Make directional light cascades and tonemapping luts pub so that custom
render passes / backends can use them.

crates/bevy_core_pipeline/src/tonemapping/mod.rs

@@ -39,9 +39,9 @@ const TONEMAPPING_LUT_BINDINGS_SHADER_HANDLE: Handle<Shader> =
 /// 3D LUT (look up table) textures used for tonemapping
 #[derive(Resource, Clone, ExtractResource)]
 pub struct TonemappingLuts {
-    blender_filmic: Handle<Image>,
-    agx: Handle<Image>,
-    tony_mc_mapface: Handle<Image>,
+    pub blender_filmic: Handle<Image>,
+    pub agx: Handle<Image>,
+    pub tony_mc_mapface: Handle<Image>,
 }
 
 pub struct TonemappingPlugin;

crates/bevy_pbr/src/light/mod.rs

@@ -300,22 +300,22 @@ impl From<CascadeShadowConfigBuilder> for CascadeShadowConfig {
 #[reflect(Component, Debug, Default, Clone)]
 pub struct Cascades {
     /// Map from a view to the configuration of each of its [`Cascade`]s.
-    pub(crate) cascades: EntityHashMap<Vec<Cascade>>,
+    pub cascades: EntityHashMap<Vec<Cascade>>,
 }
 
 #[derive(Clone, Debug, Default, Reflect)]
 #[reflect(Clone, Default)]
 pub struct Cascade {
     /// The transform of the light, i.e. the view to world matrix.
-    pub(crate) world_from_cascade: Mat4,
+    pub world_from_cascade: Mat4,
     /// The orthographic projection for this cascade.
-    pub(crate) clip_from_cascade: Mat4,
+    pub clip_from_cascade: Mat4,
     /// The view-projection matrix for this cascade, converting world space into light clip space.
     /// Importantly, this is derived and stored separately from `view_transform` and `projection` to
     /// ensure shadow stability.
-    pub(crate) clip_from_world: Mat4,
+    pub clip_from_world: Mat4,
     /// Size of each shadow map texel in world units.
-    pub(crate) texel_size: f32,
+    pub texel_size: f32,
 }
 
 pub fn clear_directional_light_cascades(mut lights: Query<(&DirectionalLight, &mut Cascades)>) {