Install authserver-plugin type to /plugins when the root package is a project

src/AuthserverInstaller.php

@@ -40,17 +40,12 @@ class AuthserverInstaller extends LibraryInstaller
     public function __construct(IOInterface $io, Composer $composer)
     {
         parent::__construct($io, $composer);
+        if($composer->getPackage()->getType() === 'project')
+            $this->vendorDir = 'plugins';
     }
 
     public function supports($packageType)
     {
         return $packageType === 'authserver-plugin';
     }
-
-    public function getInstallPath(PackageInterface $package)
-    {
-        return parent::getInstallPath($package); // TODO: Change the autogenerated stub
-    }
-
-
 }