device: Support for Teldat routers (#11118)

* teldat base

* HW and version

* tests

* typo

* typo

includes/definitions/teldat.yaml

@@ -0,0 +1,13 @@
+os: teldat
+text: 'Teldat'
+type: network
+icon: teldat
+over:
+    - { graph: device_bits, text: 'Device Traffic' }
+    - { graph: device_processor, text: 'Processor Usage' }
+    - { graph: device_mempool, text: 'Memory Usage' }
+mib_dir:
+    - teldat
+discovery:
+    - sysObjectID:
+        - .1.3.6.1.4.1.2007.

includes/polling/os/teldat.inc.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * LibreNMS
+ *
+ * Copyright (c) 2019 PipoCanaja@gmail.com
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.  Please see LICENSE.txt at the top level of
+ * the source code distribution for details.
+ */
+
+$oids = array (
+    'version' => 'telAdminStatusSystemAppVersion.0',
+    'hardware'   => 'telAdminStatusSystemBoardType.0',
+    'revision'   => 'telAdminStatusSystemBoardRevision.0',
+    'serial' => 'telAdminStatusSystemNumSerie.0'
+);
+
+$data = snmp_get_multi_oid($device, $oids, '-OUQs', 'TELDAT-MIB');
+$data['telAdminStatusSystemBoardType.0'] .= " (rev " . $data['telAdminStatusSystemBoardRevision.0'] . ")";
+unset($oids['revision']);
+
+foreach ($oids as $var => $oid) {
+    $$var = $data[$oid];
+}
+
+unset($data, $oids);