make emagged marker component (fixed version of #13867) (#14096)

* The all-in-one hacking solution
The thinking man's lockpick
The iconic EMAG

* emagged medbay's stasis bed

* left med, emagged sec' apc

* went back to chem, emagged the dispenser

* emagged the fax while i was there

* had a donut while waiting for emag to charge

* i broke into the bridge then announced 'mandatory johnson inspection in medical'

* get system instead of dependency

* feedback

* net suggestion

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

* use EnsureComp and import NetworkedComponent

---------

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

Content.Shared/Emag/Components/EmaggedComponent.cs

@@ -0,0 +1,11 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Emag.Components;
+
+/// <summary>
+/// Marker component for emagged entities
+/// </summary>
+[RegisterComponent, NetworkedComponent]
+public sealed class EmaggedComponent : Component
+{
+}