Add mechanism to ignore platforms (#63)

Reviewed-on: #63
Co-authored-by: Álex Román Núñez <eirexe@eirteam.moe>

src/fighter/ecb.rs

@@ -105,8 +105,8 @@ pub fn update_ecb(
         let left = FGVec2::new(min_x, midpoint_height);
         let right = FGVec2::new(max_x, midpoint_height);
 
-        let ecb_lock_frames_remaining = if let FighterSurfaceState::Airborne { ecb_lock_frames_remaining } = *surface_state {
-            ecb_lock_frames_remaining
+        let ecb_lock_frames_remaining = if let FighterSurfaceState::Airborne { ecb_lock_frames_remaining, .. } = surface_state {
+            *ecb_lock_frames_remaining
         } else {
             0
         };
@@ -129,6 +129,7 @@ pub fn update_ecb(
 pub fn decrement_ecb_lockout(surface_states: Query<&mut FighterSurfaceState>) {
     for mut state in surface_states {
         state.tick_ecb_lock();
+        state.tick_ignored_polygons();
     }
 }