Improve Gamepad DPad Button Detection

Enable the `axis_dpad_to_button` gilrs filter to map hats to dpad
buttons on supported remotes.

crates/bevy_gilrs/src/gilrs_system.rs

@@ -2,7 +2,7 @@ use crate::converter::{convert_axis, convert_button, convert_gamepad_id};
 use bevy_ecs::event::EventWriter;
 use bevy_ecs::system::{NonSend, NonSendMut};
 use bevy_input::{gamepad::GamepadEventRaw, prelude::*};
-use gilrs::{EventType, Gilrs};
+use gilrs::{ev::filter::axis_dpad_to_button, EventType, Filter, Gilrs};
 
 pub fn gilrs_event_startup_system(gilrs: NonSend<Gilrs>, mut events: EventWriter<GamepadEventRaw>) {
     for (id, _) in gilrs.gamepads() {
@@ -14,7 +14,12 @@ pub fn gilrs_event_startup_system(gilrs: NonSend<Gilrs>, mut events: EventWriter
 }
 
 pub fn gilrs_event_system(mut gilrs: NonSendMut<Gilrs>, mut events: EventWriter<GamepadEventRaw>) {
-    while let Some(gilrs_event) = gilrs.next_event() {
+    while let Some(gilrs_event) = gilrs
+        .next_event()
+        .filter_ev(&axis_dpad_to_button, &mut gilrs)
+    {
+        gilrs.update(&gilrs_event);
+
         match gilrs_event.event {
             EventType::Connected => {
                 events.send(GamepadEventRaw::new(