Refactoring of roles and notifications about antagonist assignment (#16864)

* Refactoring of antagonist roles and notifications about antagonist role assignment.
Refactoring of traitor assignment methods and bug fixing.

* Announcement files moved, code is adjusted to new revision

* Play to entity changed to play to global cause of mono audio restrictions.

* Path to audio files changed to sound specifiers, unique alerts for each role.

* Uncommited changes

* New alert sounds for each antag role.

* PR review fixes

* Antagonist role assignment sound notifications moved to Systems, sounds moved to Components.

* License update

* Fixed naming and redundant parameters

---------

Co-authored-by: Титов Вячеслав Витальевич <rincew1nd@yandex.ru>

Content.Server/Store/Conditions/BuyerAntagCondition.cs

@@ -1,4 +1,5 @@
 using Content.Server.Mind.Components;
+using Content.Server.Roles;
 using Content.Server.Traitor;
 using Content.Shared.Roles;
 using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype.Set;
@@ -35,7 +36,7 @@ public sealed class BuyerAntagCondition : ListingCondition
         {
             foreach (var role in mind.Mind.AllRoles)
             {
-                if (role is not TraitorRole blacklistantag)
+                if (role is not AntagonistRole blacklistantag)
                     continue;
 
                 if (Blacklist.Contains(blacklistantag.Prototype.ID))
@@ -48,7 +49,7 @@ public sealed class BuyerAntagCondition : ListingCondition
             var found = false;
             foreach (var role in mind.Mind.AllRoles)
             {
-                if (role is not TraitorRole antag)
+                if (role is not AntagonistRole antag)
                     continue;
 
                 if (Whitelist.Contains(antag.Prototype.ID))