Extract PHP Validator from main project

Xulieta is evolving to a composable plugin system on version 1.0.x.
So the [main package][xulieta] have the foundation to read common documents and
the logic to make it extensible by separated packages. This way each project
can choose exactly what should be checked and lower the barrier have more
people comming up with new validators.

[xulieta]: https://github.com/codelicia/xulieta

Signed-off-by: 💻 Eher <[email protected]>

.gitignore

@@ -1,6 +1,4 @@
-composer.phar
+.phpcs-cache
+.phpunit.result.cache
 /vendor/
-
-# Commit your application's lock file https://getcomposer.org/doc/01-basic-usage.md#commit-your-composer-lock-file-to-version-control
-# You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
-# composer.lock
+composer.phar

README.md

@@ -1,2 +1,4 @@
-# xulieta-php
-Xulieta plugin to validate PHP
+🌹 Xulieta - PHP
+================
+
+This is a plugin to lint PHP on Documentation file using [Xulieta](https://github.com/codelicia/xulieta).

composer.json

@@ -0,0 +1,45 @@
+{
+    "name": "codelicia/xulieta-php",
+    "description": "Xulieta plugin to validate PHP",
+    "type": "library",
+    "license": "MIT",
+    "autoload": {
+        "psr-4": {
+            "Codelicia\\XulietaPhp\\": "src/"
+        }
+    },
+    "authors": [
+        {
+            "name": "Jefersson Nathan",
+            "email": "[email protected]"
+        },
+        {
+            "name": "Alexandre Eher",
+            "email": "[email protected]"
+        }
+    ],
+    "config": {
+        "allow-plugins": {
+            "ocramius/package-versions": true,
+            "dealerdirect/phpcodesniffer-composer-installer": true
+        }
+    },
+    "extra": {
+        "xulieta": {
+            "validator": ["Codelicia\\XulietaPhp\\PhpValidator"]
+        }
+    },
+    "require-dev": {
+        "codelicia/xulieta": "1.0.x-dev as 1.0.0",
+        "doctrine/coding-standard": "^9.0",
+        "phpunit/phpunit": "^9.5"
+    },
+    "scripts": {
+        "phpunit": "vendor/bin/phpunit",
+        "phpcs": "vendor/bin/phpcs",
+        "test": [
+            "@phpcs",
+            "@phpunit"
+        ]
+    }
+}