add to dev for unit tests

Author: JBlond

composer.json

@@ -31,7 +31,8 @@
     "require-dev": {
         "phpunit/phpunit": "8.*",
         "squizlabs/php_codesniffer": "*",
-        "phpmd/phpmd": "2.*"
+        "phpmd/phpmd": "2.*",
+        "jblond/php-cli": "^1.0"
     },
     "suggest": {
         "jblond/php-cli": "^1.0"