Wieldable/two-handed weapons (#4554)

* wielding kinda works

* rough out all the edges, wielding works nicely

* popups + loc

* increase damage & extra damage against whitelist

* small fixes

* forgot to actually do that

* reviews

* reviews + thing

* use resistances and not extradamageagainstwhitelist

* slashy

* make increasedamageonwield and melee hit events work with modifiersets

* Silly individual

Content.Server/Wieldable/Components/IncreaseDamageOnWieldComponent.cs

@@ -0,0 +1,17 @@
+using Content.Shared.Damage;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Robust.Shared.Analyzers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization.Manager.Attributes;
+
+namespace Content.Server.Wieldable.Components
+{
+    [RegisterComponent, Friend(typeof(WieldableSystem))]
+    public class IncreaseDamageOnWieldComponent : Component
+    {
+        public override string Name { get; } = "IncreaseDamageOnWield";
+
+        [DataField("modifiers", required: true)]
+        public DamageModifierSet Modifiers = default!;
+    }
+}