Add drupol/php-conventions tool

Author: theodorosploumis

_data/projects/php-conventions.yml

@@ -0,0 +1,21 @@
+name: PHP conventions
+year_created: 2019
+source: https://github.com/drupol/php-conventions
+homepage: https://github.com/drupol/php-conventions
+docs:
+logo:
+
+description: "A developer tool which provides a pre-defined GrumPHP configuration tailored specifically for PHP development."
+
+requires:
+  - grumphp
+  - composer
+drupal_versions:
+  - 8
+  - 9
+category:
+  - testing
+  - linting
+  - devops
+similar:
+  - drupal-check