New plugin system based on Laravel Package Development (#12998)

* use Blade view and Eloquent models for plugins

* move views

* fix style

* fix style

* revert mistake

* Update Plugin.php

delete test property "name"

* rename plugin function to settings

* last but not least - rename in Test.php

* Rename Test to Example

* fix typo

* fix style

* fix style

* fix style

* fix style - I hate tabs...

* Extract view calls

* fix method calls and style

* Move Models the the abstract class

* fix style

* Convert to traits

* Change the Example description

* Fix style

* Fix style

* Fix style

* Convert plugin function to Model static methods and delete .inc.php

* fix style

* fix style

* Use scope

* final methods blows up legacy code

* Config > \LibreNMS\Config

* convert the static string to a static method

* Correct placement in the page

* fix tabs

* fix style

* Rename from tait to hook

to make it easier to understand and be complient

* rename file

* Typo

* Started to change the docu

* change to a more usefully Device_Overview example

* and activate of course

* PluginManager

* fix .gitignore

* only php files in the root folder

* corrected .gitignore with all files :)

* Rename the Hooks and ExampleClass for better readability

* Fix style

* Fix style

* Exception handling (especially if DB is not present)

* Fix style and update schema

* fix indentation

* actually correct indent

* fix migration collation check include utf8mb4_bin

* stop phpstan whining

* A view lines documentation

* add typeHints

* Allow return null on handle

* lint

* fix return types

* fix logic of column collation check

* Fix MenuEntryHook

* switch to longtext instead of json type for now :D

* try phpstan on PHP 7.3

* set phpstan target version to 7.3

* all the typehints

* optional

* more

* Use namespace to prevent view collisions
disambiguate plugin and hook
no magic guessing of names in PluginManager, bad assumptions
remove unused plugins from the DB

* cleanup plugin menu

* cleanup on shutdown and ignore but log query error on cleanup

* instanceof must be called against an instance

* Allow multiple hooks per plugin

* Port plugin ui code to Laravel

* page instead of settings for v1 plugins

* actually working settings pages
a little url cleanup plugin/admin -> plugin/settings

* fix style

* Add page hook

* PHPstan

* Try to fix Illuminate\Http\RedirectResponse

* typehint

* Rewrite the doc

* Fix style

Co-authored-by: PipoCanaja <38363551+PipoCanaja@users.noreply.github.com>
Co-authored-by: Tony Murray <murraytony@gmail.com>

config/app.php

@@ -186,6 +186,7 @@ return [
          * LibreNMS Service Providers...
          */
         App\Providers\SnmptrapProvider::class,
+        App\Providers\PluginProvider::class,
     ],
 
     /*
@@ -244,6 +245,7 @@ return [
 
         // LibreNMS
         'Permissions' => \App\Facades\Permissions::class,
+        'PluginManager' => \App\Facades\PluginManager::class,
         'DeviceCache' => \App\Facades\DeviceCache::class,
         'Rrd' => \App\Facades\Rrd::class,
         'SnmpQuery' => \App\Facades\FacadeAccessorSnmp::class,