[FEATURE] Provide ext_emconf.php

composer.json

 {
 	"name": "higidi/typo3-lock",
 	"type": "typo3-cms-extension",
-	"description": "Extension providing advanced TYPO3 locking",
+	"description": "Features TYPO3 with an advanced locking.",
 	"homepage": "http://www.higidi.de",
 	"keywords": [
 		"TYPO3",

ext_emconf.php

+<?php
+
+$EM_CONF[$_EXTKEY] = [
+    'title' => 'Advanced TYPO3 Locking',
+    'description' => 'Features TYPO3 with an advanced locking.',
+    'category' => 'misc',
+    'author' => 'Daniel Hürtgen',
+    'author_email' => 'daniel@higidi.de',
+    'state' => 'alpha',
+    'clearCacheOnLoad' => true,
+    'version' => '1.0.0',
+    'constraints' => [
+        'depends' => [
+            'typo3' => '7.6.0-8.7.99',
+            'php' => '5.6.0-7.1.99',
+        ],
+        'conflicts' => [],
+        'suggests' => [],
+    ],
+];