Shitty combat mode & animations. (#367)

* Combat mode UI & targeting zones.

* Fix inventory hud positioning.

* Crappy attack animations.

* Import TG combat sounds

* More work on arcs.

* Implement hit sounds.

* Lunging, hit effects, some more stuff.

Content.Server/GameObjects/EntitySystems/MeleeWeaponSystem.cs

@@ -0,0 +1,18 @@
+using System.Collections.Generic;
+using System.Linq;
+using Content.Shared.GameObjects.EntitySystemMessages;
+using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.Maths;
+
+namespace Content.Server.GameObjects.EntitySystems
+{
+    public sealed class MeleeWeaponSystem : EntitySystem
+    {
+        public void SendAnimation(string arc, Angle angle, IEntity attacker, IEnumerable<IEntity> hits)
+        {
+            RaiseNetworkEvent(new MeleeWeaponSystemMessages.PlayMeleeWeaponAnimationMessage(arc, angle, attacker.Uid,
+                hits.Select(e => e.Uid).ToList()));
+        }
+    }
+}