feat: migrate to glam whenever relevant + migrate testbed to kiss3d instead of bevy + release v0.32.0 (#909)

* feat: migrate to glam whenever relevant + migrate testbed to kiss3d instead of bevy

* chore: update changelog

* Fix warnings and tests

* Release v0.32.0

src_testbed/testbed/keys.rs

@@ -0,0 +1,24 @@
+//! Keyboard state tracking.
+
+use kiss3d::event::Key;
+
+/// Keyboard state
+#[derive(Default, Clone, Debug)]
+pub struct KeysState {
+    pub shift: bool,
+    pub ctrl: bool,
+    pub alt: bool,
+    pub pressed_keys: Vec<Key>,
+}
+
+impl KeysState {
+    /// Check if a specific key is currently pressed
+    pub fn pressed(&self, key: Key) -> bool {
+        self.pressed_keys.contains(&key)
+    }
+
+    /// Get all currently pressed keys
+    pub fn get_pressed(&self) -> &[Key] {
+        &self.pressed_keys
+    }
+}