Predicted stamina (#12413)

* Predicted stamina

Needed to do some semblence of predicted melee.

* Okay now done.

* Pause support

* Comment

Content.Server/Weapons/Ranged/Systems/GunSystem.cs

@@ -9,6 +9,7 @@ using Content.Server.Stunnable;
 using Content.Server.Weapons.Melee;
 using Content.Server.Weapons.Ranged.Components;
 using Content.Shared.Damage;
+using Content.Shared.Damage.Systems;
 using Content.Shared.Database;
 using Content.Shared.FixedPoint;
 using Content.Shared.Weapons.Melee;