Allow editing angle of the fired projectile (#33254)

Add Angle datafield to `ProjectileComponent`. It allows to change the angle of the fired projectile

Content.Shared/Projectiles/ProjectileComponent.cs

@@ -8,6 +8,12 @@ namespace Content.Shared.Projectiles;
 [RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
 public sealed partial class ProjectileComponent : Component
 {
+    /// <summary>
+    ///     The angle of the fired projectile.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public Angle Angle;
+
     /// <summary>
     ///     The effect that appears when a projectile collides with an entity.
     /// </summary>

Content.Shared/Weapons/Ranged/Systems/SharedGunSystem.cs

@@ -429,7 +429,7 @@ public abstract partial class SharedGunSystem : EntitySystem
         Projectiles.SetShooter(uid, projectile, user ?? gunUid);
         projectile.Weapon = gunUid;
 
-        TransformSystem.SetWorldRotation(uid, direction.ToWorldAngle());
+        TransformSystem.SetWorldRotation(uid, direction.ToWorldAngle() + projectile.Angle);
     }
 
     protected abstract void Popup(string message, EntityUid? uid, EntityUid? user);