add create user and gateway lua scripts

scripts/lua/portal/create_user.lua

@@ -0,0 +1,21 @@
+user_id = argv[1];
+if (user_id == nil or user_id == "") then os.exit() end
+
+conf = "/usr/local/freeswitch/conf"
+dir  = conf .. "/directory/default"
+template = dir .. "/1001.xml"
+dest     = dir .. "/" .. user_id .. ".xml"
+
+template_file = io.open(template, "r")
+dest_file = io.open(dest, "a+")
+print(dest_file)
+while true do
+	line = template_file:read("*line")
+    if line == nil then break end
+    line = line:gsub("1001", user_id)
+    print(line)
+    dest_file:write(line .. "\n")
+end
+
+api = freeswitch.API()
+api:execute("reloadxml")