Gun refactor (#8301)

Co-authored-by: Kara <lunarautomaton6@gmail.com>
Co-authored-by: T-Stalker <le0nel_1van@hotmail.com>
Co-authored-by: T-Stalker <43253663+DogZeroX@users.noreply.github.com>
Co-authored-by: ElectroJr <leonsfriedrich@gmail.com>
Co-authored-by: metalgearsloth <metalgearsloth@gmail.com>

Content.Shared/Weapons/Ranged/Events/RequestShootEvent.cs

@@ -0,0 +1,14 @@
+using Robust.Shared.Map;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Weapons.Ranged.Events;
+
+/// <summary>
+/// Raised on the client to indicate it'd like to shoot.
+/// </summary>
+[Serializable, NetSerializable]
+public sealed class RequestShootEvent : EntityEventArgs
+{
+    public EntityUid Gun;
+    public EntityCoordinates Coordinates;
+}