Add support for overtls custom configuration

https://github.com/ShadowsocksR-Live/overtls

v2rayN/ServiceLib/Enums/ECoreType.cs

@@ -13,6 +13,7 @@ namespace ServiceLib.Enums
         juicity = 25,
         hysteria2 = 26,
         brook = 27,
+        overtls = 28,
         v2rayN = 99
     }
 }

v2rayN/ServiceLib/Global.cs

@@ -19,6 +19,7 @@ namespace ServiceLib
         public const string SpeedPingTestUrl = @"https://www.google.com/generate_204";
         public const string JuicityCoreUrl = "https://github.com/juicity/juicity/releases";
         public const string BrookCoreUrl = "https://github.com/txthinking/brook/releases";
+        public const string OvertlsCoreUrl = "https://github.com/ShadowsocksR-Live/overtls/releases";
         public const string SingboxRulesetUrl = @"https://raw.githubusercontent.com/2dust/sing-box-rules/rule-set-{0}/{1}.srs";
         public const string IPAPIUrl = "https://api.ip.sb/geoip";
 

v2rayN/ServiceLib/Handler/CoreInfoHandler.cs

@@ -188,6 +188,15 @@ namespace ServiceLib.Handler
                     Arguments = " {0}",
                     Url = Global.BrookCoreUrl,
                     AbsolutePath = true,
+                },
+
+                new CoreInfo
+                {
+                    CoreType = ECoreType.overtls,
+                    CoreExes = [ "overtls-bin", "overtls"],
+                    Arguments = "-r client -c {0}",
+                    Url = Global.OvertlsCoreUrl,
+                    AbsolutePath = false,
                 }
 
             ];