Use composer for building

composer.json

@@ -0,0 +1,45 @@
+{
+  "name": "devstone/wp-multisite-waas",
+  "url": "https://wpmultisitewaas.org",
+  "description": "The WordPress Multisite Website as a Service (WaaS) plugin.",
+  "version": "2.3.3",
+  "authors": [
+    {
+      "name": "Arindo Duque",
+      "email": "arindo@wpultimo.com",
+      "homepage": "https://wpultimo.com"
+    },
+    {
+      "name": "David Stone",
+      "homepage": "https://github.com/superdav42"
+    }
+  ],
+  "license": [
+    "GPL-3.0-or-later"
+  ],
+  "type": "wordpress-plugin",
+  "require-dev": {
+    "composer/installers": "1.9.0",
+    "phpunit/phpunit": "^11.5.0",
+    "yoast/phpunit-polyfills": "^3.0.0",
+    "woocommerce/woocommerce-sniffs": "^1.0.0",
+    "phpunit/php-code-coverage": "^11.0.7"
+  },
+  "config": {
+    "allow-plugins": {
+      "composer/installers": true,
+      "dealerdirect/phpcodesniffer-composer-installer": true
+    }
+  },
+  "archive": {
+    "exclude": [
+      "tests",
+      "phpunit.xml.dist",
+      "composer.lock",
+      ".phpcs.xml.dist",
+      ".circleci",
+      "vendor",
+      "addons"
+    ]
+  }
+}