Initial work on ledge & improved baking of root motion. (#90)

Reviewed-on: #90
Co-authored-by: Álex Román Núñez <eirexe@eirteam.moe>

src/game_settings.rs

@@ -45,6 +45,8 @@ pub struct FighterSettingsCommon {
     pub leave_ground_ecb_frame_lock_duration: u32,
     pub platform_pass_platform_ignore_duration_frames: u32,
     pub platform_pass_initial_downwards_velocity: FGi32,
+    /// Frames during which a fighter cannot grab any ledge after dropping from one.
+    pub ledge_drop_regrab_lockout_duration_frames: u32,
 
     pub intangible_color: Color,
     pub intangible_pulse_duration: u32,