Add Epson Projector as new OS (#12928)

* Add Epson Projector as new OS

* Remove poller definitions

* Remove poller definitions

* convert os to epson-projector

* fix delete doc/Alerting/Transports.md

includes/discovery/sensors/count/epson-projector.inc.php

@@ -0,0 +1,37 @@
+<?php
+/*
+ * LibreNMS
+ *
+ * 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.
+ *
+ * @package    LibreNMS
+ * @subpackage webui
+ * @link       http://librenms.org
+ * @copyright  2018 LibreNMS
+ * @author     LibreNMS Contributors
+*/
+
+use Illuminate\Support\Str;
+
+if (Str::startsWith($device['sysObjectID'], '.1.3.6.1.4.1.1248.4.1')) {
+    discover_sensor(
+        $valid['sensor'],
+        'count',
+        $device,
+        '.1.3.6.1.4.1.1248.4.1.1.1.1.0',
+        0,
+        'epson-projector',
+        'Lamp Hours',
+        1,
+        1,
+        null,
+        null,
+        null,
+        null,
+        snmp_get($device, '.1.3.6.1.4.1.1248.4.1.1.1.1.0', '-Ovq')
+    );
+}