SKREEEEEE (#3706)

* Import bird sprites and define basic mob.

* SKREEEEEEEEE

* Move hair styles to new sprite accessory prototypes.

Basic stuff, no multi-species stuff yet.

* Vox hair styles and clothes

* Make HumanoidCharacterProfile.Default() a static default to fix tests.

Usages that wanted the previous random behavior now call Random().

* Remove names from hair style prototypes.

(They're in localization files)

* Update Content.Shared/Actions/ActionType.cs

(sk)reeee github

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Shared/SharedContentIoC.cs

@@ -0,0 +1,13 @@
+using Content.Shared.Preferences.Appearance;
+using Robust.Shared.IoC;
+
+namespace Content.Shared
+{
+    public static class SharedContentIoC
+    {
+        public static void Register()
+        {
+            IoCManager.Register<SpriteAccessoryManager, SpriteAccessoryManager>();
+        }
+    }
+}