Hi Dharmesh,
QACMS's Menu plugin was not designed to work as a standalone plugin, so it is not possible to use it on an standard CakePHP project. Even more, Menu plugin depends on other QACMS's plugins (Block plugin for example) which are also not designed to work out of QACMS scope.
We can work on this and try to decouple of other plugins, but it would require a big effort refactoring this.
However, you can always try to include QACMS's Menu plugin in your CakePHP project and see if works:
~$ composer require quickapps-plugins/menu
In the other hand, if you need to use parts of QACMS within your project... why not include your project in QACMS?
QACMS architecture was designed to extend CakePHP's core, so it is not really different from a standard CakePHP installation. There is a paper explaining all this,
but unfortunately written in Spanish.
Hope this help.
Best regards!