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.Client/Weapons/Ranged/Components/SpentAmmoVisualsComponent.cs

@@ -0,0 +1,20 @@
+using Content.Client.Weapons.Ranged.Systems;
+
+namespace Content.Client.Weapons.Ranged.Components;
+
+[RegisterComponent, Friend(typeof(GunSystem))]
+public sealed class SpentAmmoVisualsComponent : Component
+{
+    /// <summary>
+    /// Should we do "{_state}-spent" or just "spent"
+    /// </summary>
+    [DataField("suffix")] public bool Suffix = true;
+
+    [DataField("state")]
+    public string State = "base";
+}
+
+public enum AmmoVisualLayers : byte
+{
+    Base,
+}