Make portals use ICollideBehavior and set collidable.Hard to false (#2186)

Content.Server/GameObjects/Components/Portal/TeleportableComponent.cs

@@ -0,0 +1,10 @@
+using Robust.Shared.GameObjects;
+
+namespace Content.Server.GameObjects.Components.Portal
+{
+    [RegisterComponent]
+    public class TeleportableComponent : Component
+    {
+        public override string Name => "Teleportable";
+    }
+}