Refactor profile item config (#8659)

* Refactor

* Add hysteria2 bandwidth and hop interval support

* Upgrade config version and rename

* Refactor id and security

* Refactor flow

* Fix hy2 bbr

* Fix warning CS0618

* Remove unused code

* Fix hy2 migrate

* Fix

* Refactor

* Refactor ProfileItem protocol extra handling

* Refactor, use record instead of class

* Hy2 SalamanderPass

* Fix Tuic

* Fix group

* Fix Tuic

* Fix hy2 Brutal Bandwidth

* Clean Code

* Fix

* Support interval range

* Add Username

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Co-authored-by: 2dust <31833384+2dust@users.noreply.github.com>

v2rayN/ServiceLib/Global.cs

@@ -90,6 +90,8 @@ public class Global
     public const string SingboxFakeDNSTag = "fake_dns";
     public const string SingboxEchDNSTag = "ech_dns";
 
+    public const int Hysteria2DefaultHopInt = 10;
+
     public static readonly List<string> IEProxyProtocols =
     [
         "{ip}:{http_port}",