add support for Virion v3.0

Author: ColinHDev

composer.json

@@ -11,5 +11,14 @@
     "phpstan/phpstan": "^1.10.0",
     "phpstan/phpstan-strict-rules": "^1.5.0",
     "phpstan/extension-installer": "^1.3.0"
+  },
+  "autoload": {
+    "classmap": ["src"]
+  },
+  "extra": {
+    "virion": {
+      "spec": "3.0",
+      "namespace-root": "ColinHDev\\libAsyncEvent"
+    }
   }
 }