Allow PKA to gather (#16250)

Content.Server/Gatherable/Components/GatheringProjectileComponent.cs

@@ -0,0 +1,10 @@
+namespace Content.Server.Gatherable.Components;
+
+/// <summary>
+/// Destroys a gatherable entity when colliding with it.
+/// </summary>
+[RegisterComponent]
+public sealed class GatheringProjectileComponent : Component
+{
+
+}