Move libraries back to require-dev

Author: Patrick McLain

composer.json

@@ -35,7 +35,6 @@
         "colinmollenhour/credis": "1.6",
         "colinmollenhour/php-redis-session-abstract": "~1.3.8",
         "composer/composer": "~1.6.0",
-        "friendsofphp/php-cs-fixer": "~2.10.0",
         "magento/composer": "1.3.0.x-dev",
         "magento/magento-composer-installer": ">=0.1.11",
         "magento/zendframework1": "~1.13.0",
@@ -44,7 +43,6 @@
         "pelago/emogrifier": "^2.0.0",
         "phpseclib/phpseclib": "2.0.*",
         "ramsey/uuid": "3.6.1",
-        "sebastian/phpcpd": "~3.0.0",
         "symfony/console": "~4.0.0",
         "symfony/event-dispatcher": "~4.0.0",
         "symfony/process": "~4.0.0",
@@ -79,10 +77,12 @@
         "zendframework/zend-view": "^2.8.1"
     },
     "require-dev": {
+        "friendsofphp/php-cs-fixer": "~2.10.0",
         "lusitanian/oauth": "~0.8.10",
         "pdepend/pdepend": "2.5.0",
         "phpmd/phpmd": "@stable",
         "phpunit/phpunit": "~6.2.0",
+        "sebastian/phpcpd": "~3.0.0",
         "squizlabs/php_codesniffer": "3.0.1"
     },
     "replace": {