added support for multiple custom configs in subscriptions + remarks

Accepting both single config and multiple configs i.e:
{customConfig} or [{customConfig1}, {customConfig2} ...]

Furtheremore added an optional 'remarks' field to v2rayConfig class to keep remote customConfig name.

V2rayNG/app/src/main/kotlin/com/v2ray/ang/dto/V2rayConfig.kt

@@ -10,6 +10,7 @@ import com.google.gson.reflect.TypeToken
 import java.lang.reflect.Type
 
 data class V2rayConfig(
+        var remarks: String? = null,
         var stats: Any? = null,
         val log: LogBean,
         var policy: PolicyBean?,
@@ -69,6 +70,7 @@ data class V2rayConfig(
                             val mux: MuxBean? = MuxBean(false)) {
 
         data class OutSettingsBean(var vnext: List<VnextBean>? = null,
+                                   var fragment: FragmentBean? = null,
                                    var servers: List<ServersBean>? = null,
                 /*Blackhole*/
                                    var response: Response? = null,
@@ -101,6 +103,10 @@ data class V2rayConfig(
                                      var flow: String = "")
             }
 
+            data class FragmentBean(var packets: String = "",
+                                 var length: String = "10-20",
+                                 var interval: String = "10-20")
+
             data class ServersBean(var address: String = "",
                                    var method: String = "chacha20-poly1305",
                                    var ota: Boolean = false,
@@ -135,7 +141,7 @@ data class V2rayConfig(
                                       var realitySettings: TlsSettingsBean? = null,
                                       var grpcSettings: GrpcSettingsBean? = null,
                                       val dsSettings: Any? = null,
-                                      val sockopt: Any? = null
+                                      val sockopt: SockoptBean? = null
         ) {
 
             data class TcpSettingsBean(var header: HeaderBean = HeaderBean(),
@@ -181,6 +187,12 @@ data class V2rayConfig(
             data class HttpSettingsBean(var host: List<String> = ArrayList(),
                                         var path: String = "")
 
+            data class SockoptBean(var TcpNoDelay: Boolean? = null,
+                                   var tcpKeepAliveIdle: Int? = null,
+                                   var tcpFastOpen: Boolean? = null,
+                                   var tproxy: String? = null,
+                                   var mark: Int? = null)
+
             data class TlsSettingsBean(var allowInsecure: Boolean = false,
                                        var serverName: String = "",
                                        val alpn: List<String>? = null,