Add build cascade to help (#5279)
Add build cascade to help (#5279)

* Added help

* Build cascade on help

* Update conans/client/command.py

Co-Authored-By: Javier G. Sogo <da35f3e5ea20652e668bd638e1549c7444ffed3a@gmail.com>

conan-io/conan,memsharded/conan,memsharded/conan,memsharded/conan,conan-io/conan,memsharded/conan,conan-io/conan