feat(demo): Update demo to be installable by fusiondirectory-plugin-manager

Update demo to be installable by fusiondirectory-plugin-manager

Signed-off-by: Jonathan Swaelens <jonathan.swaelens@fusiondirectory.org>

simple-plugin/demoPlugin/contrib/yaml/description.yaml

+information:
+  name : "demoPlugin"
+  description : "demoPlugin"
+  version : "0.1"
+  authors : ['fusiondirectory']
+  status : "Development"
+  screenshotUrl:
+    - ""
+  logoUrl : ""
+  tags : ["information"]
+  license: "GPLv2"
+  origin: "source"
+
+support:
+  provider: "fusiondirectory"
+  homeUrl : ""
+  ticketUrl : ""
+  discussionUrl : ""
+  schemaUrl: ""
+  downloadUrl: ""
+
+requirement:
+  fdVersion : 1.4
+  phpVersion : 7.4.0
+
+content :
+  fileList :
+  - './contrib/openldap/demoPlugin.schema'
+  - './contrib/yaml/description.yaml'
+  - './personal/demoPlugin/class_demoPlugin.inc'

simple-plugin/demoPlugin/main.inc

-<?php
-/*
-  This code is part of FusionDirectory (http://www.fusiondirectory.org)
-  Copyright (C) 2012-2016 FusionDirectory
-
-  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 2 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, write to the Free Software
-  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
-*/
-simplePlugin::mainInc('demoPlugin', $ui->dn);
-?>

simple-plugin/demoPlugin/class_demoPlugin.inc → simple-plugin/demoPlugin/personal/demoPlugin/class_demoPlugin.inc

@@ -32,7 +32,7 @@ class demoPlugin extends simplePlugin
   var $objectclasses = ['demoPlugin'];
 
   // The main function : information about attributes
-  static function getAttributesInfo ()
+  static function getAttributesInfo () : array
   {
     return [
       // Attributes are grouped by section
@@ -114,7 +114,7 @@ class demoPlugin extends simplePlugin
   }
 
   // We also need this function that return some information about the plugin
-  static function plInfo ()
+  static function plInfo () : array
   {
     return [
       'plShortName'       => _('Demo Plugin'),