Move php-cs-fixer to tools directory. (#123)

* Move php-cs-fixer to tools directory.

* Fixup composer lock file.

Author: greylabel

.gitignore

@@ -6,4 +6,5 @@ src/shared-config*
 ###> friendsofphp/php-cs-fixer ###
 /.php-cs-fixer.php
 /.php-cs-fixer.cache
+/tools/php-cs-fixer/vendor/
 ###< friendsofphp/php-cs-fixer ###

composer.json

@@ -18,8 +18,6 @@
         "react/http": "^0.8.3",
         "twig/twig": "^v3.7.1"
     },
-    "require-dev": {
-        "friendsofphp/php-cs-fixer": "^3.38.0"
-    },
+    "require-dev": {},
     "sort-packages": true
 }