Automated whitelists (#23985)

* Beginnings of making the breadmemes jobs easier

* stuff

* stuff pt. 2

* Stuff pt.3

* Stuff I forgot last time

* Basic whitelist

Only people that are added to the whitelist with the addwhitelist command will be able to join. I call this the "legacy" whitelist

* Remove always deny condition in favor of just breaking if playtime check fails

* Change default whitelist

Default whitelist is now the "legacy" whitelist.

* localization

* Admin check

* minor spelling change

* Fix build

* Whitelist message

* Fix vars not being datafield and spelling mistakes

* Minor spelling mistake

* Change config for salamander

* Reviews and stuff

* Add summaries

* Fix whitelists

* Forgot to add a datafield

* Fixing stuff I guess

* Reuse admin remarks to reduce load when connecting.

* Update log messages to be verbose instead of debug

* Reviews

* whoops

* Explain a bit more how whitelist checking works

* Apply CE's review

* Append Membership to Blacklist and Whitelist conditions

* Fix review comments

* Uncapitalize playerConnectionWhitelist, add to ignored client prototypes

* Make note count field work

* Fix cvar for thingy

---------

Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Server/Connection/Whitelist/WhitelistCondition.cs

@@ -0,0 +1,41 @@
+using System.Text.Json.Serialization;
+using System.Threading.Tasks;
+using JetBrains.Annotations;
+using Robust.Shared.Network;
+
+namespace Content.Server.Connection.Whitelist;
+
+/// <summary>
+/// This class is used to determine if a player should be allowed to join the server.
+/// It is used in <see cref="PlayerConnectionWhitelistPrototype"/>
+/// </summary>
+[ImplicitDataDefinitionForInheritors]
+[MeansImplicitUse]
+public abstract partial class WhitelistCondition
+{
+    /// <summary>
+    /// What action should be taken if this condition is met?
+    /// Defaults to <see cref="ConditionAction.Next"/>.
+    /// </summary>
+    [DataField]
+    public ConditionAction Action { get; set; } = ConditionAction.Next;
+}
+
+/// <summary>
+/// Determines what action should be taken if a condition is met.
+/// </summary>
+public enum ConditionAction
+{
+    /// <summary>
+    /// The player is allowed to join, and the next conditions will be skipped.
+    /// </summary>
+    Allow,
+    /// <summary>
+    /// The player is denied to join, and the next conditions will be skipped.
+    /// </summary>
+    Deny,
+    /// <summary>
+    /// The next condition should be checked.
+    /// </summary>
+    Next
+}