Rewrite ISIS Adjacency discovery/polling (#13155)

* Rewrite ISIS Adjacency discovery/polling
hopefully much faster now, do most work in discovery and just check up/down in poller.

* unused variable

* Implement option for OS override

* fix an incorrect typehint

* test data

* work around stupid migration name

* update schema

* better handling for the on-demand discovery

* more detailed phpdoc

* fix when adjacency is not found

* don't clear out data when adjacency goes away

* Adjust nullable fields

* fixes

* fix class name

* correct migration

* fix bug causing adjacency data to always be blank

* port popups for port links

* isisISAdjState does not need to be nullable

* remove extra space

* default off

* If port is missing return $text

* update schema

* Cleanup old components

* correc copy paste error

LibreNMS/Util/ModuleTestHelper.php

@@ -56,13 +56,14 @@ class ModuleTestHelper
     private $exclude_from_all = ['arp-table', 'fdb-table'];
     private static $module_deps = [
         'arp-table' => ['ports', 'arp-table'],
+        'cisco-mac-accounting' => ['ports', 'cisco-mac-accounting'],
         'fdb-table' => ['ports', 'vlans', 'fdb-table'],
-        'vlans' => ['ports', 'vlans'],
-        'vrf' => ['ports', 'vrf'],
+        'isis' => ['ports', 'isis'],
         'mpls' => ['ports', 'vrf', 'mpls'],
         'nac' => ['ports', 'nac'],
         'ospf' => ['ports', 'ospf'],
-        'cisco-mac-accounting' => ['ports', 'cisco-mac-accounting'],
+        'vlans' => ['ports', 'vlans'],
+        'vrf' => ['ports', 'vrf'],
     ];
 
     /**