Bevy v0.16.0 (#50)

* Add flake

* Change bevy to version 0.16.0-rc.1

* Change edition to 2024

* Add feature std to bevy in Cargo.toml

* Split dependencies table in Cargo.toml

* Add feature bevy_log to bevy in Cargo.toml

* Update Cargo.lock

* Migrate src/combinator.rs

Change ChildBuilder to ChildSpawnerCommands
rustfmt changes the whole file for some reason

* Migrate src/lib.rs

Change IntoSystemConfigs to IntoScheduleConfigs

* Add easefunction svgs from bevy

* Migrate src/interpolation.rs

Update EaseKind variants
- SmoothStepIn
- SmoothStepOut
- SmoothStep
- SmootherStepIn
- SmootherStepOut
- SmootherStep
- Add JumpAt to Steps

update easing_functions

* Migrate src/tween/systems.rs

Replace SystemConfigs with ScheduleConfigs
Add Mutability constraints
Update QueryEntityErrorWithoutWorld
Replace Parent with ChildOf
Replace HashMap::new() with HashMap::default()
Replace HashSet::new() with HashSet::default()
Replace parent.get() with parent.parent

* Migrate src/tween_event.rs

* Migrate examples/demo/hold.rs

* Migrate examples/animation/banner_triangle.rs

* Migrate examples/demo/utils/mod.rs

* Migrate examples/interpolator.rs

* Migrate examples/demo/event.rs

* Migrate examples/demo/click.rs

* Change bevy to 0.16.0-rc.2

* Update Cargo.lock

* Migrate examples/demo/hold.rs

* Change bevy to 0.16.0-rc.4

* Remove bevy_log from bevy features

* Update Cargo.lock

* Migrate to bevy 0.16.0-rc.4

Update `.parent` to `.parent()`

* Migrate to bevy-v0.16.0-rc.5

* Add bevy_math with curve features

* Add serialize feature to bevy_math

* Migrate to Bevy v0.16.0 (#57)

* Fix follow example

* Update entity_structure example

* Update bevy_lookup_curve interpolation

* Update bevy_lookup_curve example

* Update CHANGELOG.md

* Remove unreleased version from README.md

* Add bevy_math with curve feature

* Add bevy_math/serialize to serde feature flag

* Update Cargo.lock

* Update docs

* Revert version

* Update Cargo.lock

* Update docs

---------

Co-authored-by: Rabbival <87331993+Rabbival@users.noreply.github.com>

Author: Multirious

.gitignore

@@ -1,8 +1,4 @@
 /target
+/.envrc
+/.direnv
 
-
-# Added by cargo
-#
-# already existing elements were commented out
-
-#/target

CHANGELOG.md

@@ -1,5 +1,15 @@
 # Changelog
 
+## Unreleased - xxxx-xx-xx
+
+### Changes
+
+- Migrate to bevy 0.16
+  - Update all examples
+- Change to Rust edition 2024
+- Add Nix flake files
+- Update EaseKind documentation to EaseFunction
+
 ## v0.7.0 - 2024-12-09
 
 ### Changes