code: static function getVendorDir( $vendorPrefix = 'vendor' )
      {
          if( is_dir( __DIR__ . '/../../../composer' ) && is_file( __DIR__ . '/../../../autoload.php' ) )
          {
              return realpath( __DIR__ . '/../../..' );
          }
          if( is_dir( __DIR__ . "/../$vendorPrefix/composer" ) && is_file( __DIR__ . "/../$vendorPrefix/autoload.php" ) )
          {
              return realpath( __DIR__ . "/../$vendorPrefix" );
          }
          return false;
      }
docs: Tries to find out the vendor dir of composer - should work both when ezextbuilder is main project and when it is
  a dependency. Returns FALSE if not found
  
  @param string $vendorPrefix
  @return string