Allow airborne fighters to pass through platforms while holding down

src/fighter/state/ground.rs

@@ -9,6 +9,7 @@ use crate::fighter::{
     FighterAttributes, FighterPreviousTranslation, FighterTranslation, FighterVelocity,
 };
 use crate::game_settings::GameSettings;
+use crate::input::FighterInput;
 use crate::math::int::{FGWide, FGi32};
 use crate::math::vec::FGVec2;
 use crate::stage::line::{StageLineID, StagePoly, StagePolyLineSegment, StagePolyLineSegmentType};
@@ -248,7 +249,6 @@ mod tests {
     use crate::fighter::ecb::FighterPreviousECB;
     use crate::fighter::{FighterECB, FighterSurfaceState};
     use crate::stage::line::StagePolyType;
-    use crate::input::FighterInput;
 
     fn two_segment_floor() -> StagePoly {
         StagePoly::build(