Fix headers, add units tests and Pull Request template

.github/pull_request_template.md

@@ -0,0 +1,15 @@
+## Checklist before requesting a review
+
+*Please delete options that are not relevant.*
+
+- [ ] I have performed a self-review of my code.
+- [ ] I have added tests (when available) that prove my fix is effective or that my feature works.
+- [ ] I have updated the CHANGELOG with a short functional description of the fix or new feature.
+- [ ] This change requires a documentation update.
+
+## Description
+
+- It fixes # (issue number, if applicable)
+- Here is a brief description of what this PR does
+
+## Screenshots (if appropriate):

.gitignore

@@ -4,3 +4,4 @@ vendor/
 .gh_token
 *.min.*
 var
+tests/files/

.twig_cs.dist.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+use FriendsOfTwig\Twigcs;
+
+$finder = Twigcs\Finder\TemplateFinder::create()
+    ->in(__DIR__ . '/templates')
+    ->name('*.html.twig')
+    ->ignoreVCSIgnored(true);
+
+return Twigcs\Config\Config::create()
+    ->setFinder($finder)
+    ->setRuleSet(\Glpi\Tools\GlpiTwigRuleset::class)
+;

CHANGELOG.md

@@ -0,0 +1,8 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+## [UNRELEASE]

composer.json

@@ -11,5 +11,10 @@
             "php": "8.2.99"
         },
         "sort-packages": true
+    },
+    "autoload": {
+        "psr-4": {
+            "GlpiPlugin\\Moreoptions\\Tests\\": "tests"
+        }
     }
 }