ISIS-adjacency polling support (#12461)

* init

* Add adjacency polling support

* Format messages

* Fix prints

* Apply fixes from StyleCI

* Fix schema

* Schema fix

* Alert rule example

* Remove display format

* Change option order

* Add test data

* Add test data

* Test data

* Review fixes

* Remove duplicate MIB-file

* Add cleanup

* Fix

* Print fix

* Remove extra cleanup

* Revert "Remove duplicate MIB-file"

This reverts commit 4b3cf8127c.

* Remove unneeded MIB-files

* Add check for empty array

* Apply fixes from StyleCI

* Review fixes

* StyleCI

* StyleCI

* Apply fixes from StyleCI

* typo

* Update function calls on pages

* Linting fixes

* Apply fixes from StyleCI

* Discovery module

* Add discovery module

* Apply fixes from StyleCI

* Update example alert rule

Co-authored-by: ottorei <ottorei@users.noreply.github.com>
Co-authored-by: PipoCanaja <38363551+PipoCanaja@users.noreply.github.com>

app/Http/ViewComposers/MenuComposer.php

@@ -162,6 +162,16 @@ class MenuComposer
                 ];
             }
 
+            if ($routing_count['isis']) {
+                $routing_menu[] = [
+                    [
+                        'url' => 'isis',
+                        'icon' => 'arrows-alt',
+                        'text' => 'ISIS Adjacencies',
+                    ],
+                ];
+            }
+
             if ($routing_count['cisco-otv']) {
                 $routing_menu[] = [
                     [