Add iran.dat when updating xray (#870)

we can download iran.dat, because it's one of the required files in our settings

xray/process.go

@@ -13,6 +13,7 @@ import (
 	"strings"
 	"sync"
 	"syscall"
+
 	"x-ui/config"
 	"x-ui/logger"
 	"x-ui/util/common"
@@ -40,6 +41,10 @@ func GetGeoipPath() string {
 	return config.GetBinFolderPath() + "/geoip.dat"
 }
 
+func GetIranPath() string {
+	return config.GetBinFolderPath() + "/iran.dat"
+}
+
 func GetIPLimitLogPath() string {
 	return config.GetLogFolder() + "/3xipl.log"
 }