add zero downtime commands to the v7 command list
add zero downtime commands to the v7 command list

- these were added into the v6 CLI via pull request, now that the v7 cli
is on master, they needed to be added here as well.

[#161187770]

Signed-off-by: Anand Gaitonde <4f0ff06b2390eeadb0769d298cbdb3dc6df4c73d@pivotal.io>

cloudfoundry/cli,cloudfoundry/cli,cloudfoundry/cli