[Merged by Bors] - Add helpers to send Events from World

crates/bevy_ecs/src/world/mod.rs

@@ -1156,6 +1156,19 @@ impl World {
         result
     }
 
+    /// "Sends" an `event`.
+    #[inline]
+    pub fn event_send<E: crate::event::Event>(&mut self, event: E) {
+        self.resource_mut::<crate::event::Events<E>>().send(event);
+    }
+
+    /// Sends the default value of the event.
+    #[inline]
+    pub fn event_send_default<E: crate::event::Event + Default>(&mut self) {
+        self.resource_mut::<crate::event::Events<E>>()
+            .send_default();
+    }
+
     /// # Safety
     /// `component_id` must be assigned to a component of type `R`
     #[inline]