Merge branch 'add-composer-file' into 'master'

Add composer file and make module d9-ready

See merge request !2

cern_ldap_api.info.yml

@@ -2,6 +2,7 @@ name: CERN Ldap API
 type: module
 description: Provides a service API to access CERN LDAP, please note this module doesn't offer any interface and should be used only to develop advance modules
 core: 8.x
+core_version_requirement: ^8 || ^9
 package: CERN
 version: 0.1
-project: cern_ldap_api
\ No newline at end of file
+project: cern_ldap_api

composer.json

+{
+  "name": "drupal/cern-ldap-api",
+  "description": "Provides a service API to access CERN LDAP",
+  "version": "0.1",
+  "type": "drupal-custom-module",
+  "license": "GPL-2.0-or-later",
+  "authors": [
+    {
+      "name": "Konstantinos Platis",
+      "email": "konstantinos.platis@cern.ch"
+    }
+  ],
+  "repositories": [
+    {
+      "type": "composer",
+      "url": "https://packages.drupal.org/8"
+    }
+  ],
+  "require": {}
+}