Added s7comm filters to asset_utils

Author: MatteoBiscosi

scripts/locales/en.lua

@@ -454,6 +454,8 @@ local lang = {
     ["dns_server"] = "DNS Server",
     ["dns_servers"] = "DNS Servers",
     ["dns_name"] = "DNS Resolved",
+    ["s7comm_server"] = "S7Comm Server",
+    ["s7comm_servers"] = "S7Comm Servers",
     ["devices_distribution"] = "Assets By Device Type",
     ["delete_asset"] = "Are you sure to delete the selected host from Assets? This action cannot be undone.",
     ["delete_asset_title"] = "Delete Assets",