* Add ISIS discovery and polling for iosxe devices
* remove ModuleModelObserver
* add php stan exclusions as they are already present for the base module
* change port_id to cached lookup
* Create model object instead of using arrays and set properties directly
* remove unneeded space...
* remove null from non nullable field
* revert to extending from ciscowlc rather than os
* remove OS module
* remove phpstan exclusions and fix errors
* add spacing...
* add spacing....
* add spacing
* again...
* Add tests
* Update Iosxe.php
* Update IsisAdjacency.php
* Create 2022_04_08_085504_isis_adjacencies_table_add_index.php
* Update db_schema.yaml
* Update iosxe_asr920.json
* Update Iosxe.php
* Update Iosxe.php
* Update junos_mx5t_isis.json
Co-authored-by: Tony Murray <murraytony@gmail.com>
* 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
