Add mechanism to ignore platforms (#63)

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

src/fighter/state/mod.rs

@@ -199,12 +199,14 @@ impl CollisionContext<'_> {
     pub fn air_collide_with_stage(
         &self,
     ) -> Option<crate::fighter::collision::AirCollisionWithStageResult> {
+        let ignored_polys = self.surface.ignored_polygon_ids();
         crate::fighter::collision::air_collide_with_stage(
             self.prev_translation,
             self.translation,
             self.prev_ecb,
             self.ecb,
             self.stage_collision,
+            &ignored_polys,
         )
     }
 }