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/Access/Components/AccessReaderComponent.cs

@@ -7,13 +7,6 @@ namespace Content.Shared.Access.Components
     [RegisterComponent]
     public sealed class AccessReaderComponent : Component
     {
-        /// <summary>
-        ///     Whether this reader is enabled or not. If disabled, all access
-        ///     checks will pass.
-        /// </summary>
-        [ViewVariables(VVAccess.ReadWrite)]
-        public bool Enabled = true;
-
         /// <summary>
         ///     The set of tags that will automatically deny an allowed check, if any of them are present.
         /// </summary>