Add reflection for crystals (#16426)

Content.Shared/Weapons/Ranged/Components/ReflectiveComponent.cs

@@ -0,0 +1,15 @@
+using Content.Shared.Weapons.Reflect;
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Weapons.Ranged.Components;
+
+/// <summary>
+/// Can this entity be reflected.
+/// Only applies if it is shot like a projectile and not if it is thrown.
+/// </summary>
+[RegisterComponent, NetworkedComponent]
+public sealed class ReflectiveComponent : Component
+{
+    [ViewVariables(VVAccess.ReadWrite), DataField("reflective")]
+    public ReflectType Reflective = ReflectType.NonEnergy;
+}