Fixed snmptraps. (#8898)

* Fixed snmptraps.

* Fixed space

* Added bgp down/up and authentication failure

* Fixed typo

* Fixed some typos, arrays, astext and format_hostname

* Updated documentation

* Moved code to a function

* Some refactor

* Minor fixes

* Minor fixes 2

* More minor fixes

* Changes requested by Tony

* Minor fixes

* Moved include to snmptrap.php

* Refactor traps to use object oriented code.

Should trigger events too/instead, but we'll leave that.
Testing todo

* Add tests and fix things so they actually work
Not checking events yet.

* Fixed typo and severity level

* Update composer deps, I think the lock file wasn't right.
add json and mbstring extension deps while I'm at it.

* Fix several issues with phpunit fixtures

app/Models/Ipv6Address.php

@@ -0,0 +1,46 @@
+<?php
+/**
+ * Ipv6Address.php
+ *
+ * -Description-
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @package    LibreNMS
+ * @link       http://librenms.org
+ * @copyright  2018 Tony Murray
+ * @author     Tony Murray <murraytony@gmail.com>
+ */
+
+namespace App\Models;
+
+class Ipv6Address extends BaseModel
+{
+    public $timestamps = false;
+    protected $primaryKey = 'ipv6_address_id';
+
+    // ---- Query scopes ----
+
+    public function scopeHasAccess($query, User $user)
+    {
+        return $this->hasPortAccess($query, $user);
+    }
+
+    // ---- Define Relationships ----
+
+    public function port()
+    {
+        return $this->belongsTo('App\Models\Port', 'port_id', 'port_id');
+    }
+}