Add phpcs config

Author: Pavlusha311245

.gitignore

@@ -1,3 +1,4 @@
 .idea
 vendor
 .php-cs-fixer.cache
+.phpcs-cache

.phpcs.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+<ruleset
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="./vendor/squizlabs/php_codesniffer/phpcs.xsd">
+
+    <arg name="basepath" value="."/>
+    <arg name="cache" value=".phpcs-cache"/>
+    <arg name="colors"/>
+    <arg name="extensions" value="php"/>
+    <arg name="parallel" value="80"/>
+
+    <!-- Show progress -->
+    <arg value="p"/>
+
+    <!-- Paths to check -->
+    <file>.</file>
+    <exclude-pattern>vendor/*</exclude-pattern>
+
+    <!-- Include all rules from PSR-12 Coding Standard -->
+    <rule ref="PSR12"/>
+</ruleset>