feat: native split-tunneling for xray (#1899)

* feat: integrated xray as a library and added split-tunneling

* fix: added copying amnezia_xray.dll to build dir

* fix: changed path on darwin

* chore: clean up getting default device

* chore: removed WSAGetLastError from sockopt logging

* fix: get rid of debug logs in xray handlers

* fix: minor fixes and xray debugging capabilities

* fix: macos default interface fix

* fix: roll-back ipv6 sockopt for mac

* fix: bind IPv6 on Windows

* fix: (win) better IPv6 handling and router fixes

* feat: prebuilts uploaded

* fix: removed redundant cmake definitions

* feat: moved xray to service process, reworked errors

* fix: return values in networkUtilities

* fix: macos build fixes

* fix: (windows) cmake fixes

* fix: (windows) compilation fix

* fix: (windows) changed location of amnezia_xray.dll

* feat: xray logs added to system service

* chore: bump xray&tun2socks versions for android

* chore: cleanup of XrayProtocol class
* removed killswitch
* removed redundant members and basic cleanup

* feat: support split-tunneling in iOS and macOS NE

* chore: update active interface index based on network path and available interfaces

* refactor: update network path handling and logging in PacketTunnelProvider

* chore: bump xray deps

---------

Co-authored-by: Yaroslav Yashin <yaroslav.yashin@gmail.com>

client/platforms/ios/PacketTunnelProvider+OpenVPN.swift

@@ -131,7 +131,7 @@ extension PacketTunnelProvider {
         }
 
         startHandler = completionHandler
-        ovpnAdapter?.connect(using: packetFlow)
+        ovpnAdapter?.connect(using: openVPNPacketFlow())
     }
 
     func handleOpenVPNStatusMessage(_ messageData: Data, completionHandler: ((Data?) -> Void)? = nil) {
@@ -153,7 +153,7 @@ extension PacketTunnelProvider {
     }
 
     func stopOpenVPN(with reason: NEProviderStopReason, completionHandler: @escaping () -> Void) {
-        ovpnLog(.info, message: "Stopping tunnel: reason: \(reason.description)")
+        ovpnLog(.info, message: "Stopping tunnel: reason: \(reason.amneziaDescription)")
 
         stopHandler = completionHandler
         if vpnReachability.isTracking {
@@ -293,5 +293,3 @@ extension PacketTunnelProvider: OpenVPNAdapterDelegate {
         ovpnLog(.info, message: logMessage)
     }
 }
-
-extension NEPacketTunnelFlow: OpenVPNAdapterPacketFlow {}