CLI should request appName and envName

[pacome35220]

I'm submitting a ... (check one with "x")

[ ] bug report => search github for a similar issue or PR before submitting
[x] feature request

Scope (check one with "x")

[ ] <root>
[x] @zetapush/cli
[ ] @zetapush/client
[ ] @zetapush/cometd
[ ] @zetapush/common
[ ] @zetapush/core
[ ] @zetapush/create
[ ] @zetapush/http-server
[ ] @zetapush/platform-legacy
[ ] @zetapush/testing
[ ] @zetapush/troubleshooting
[ ] @zetapush/user-management
[ ] @zetapush/worker

Current behavior

• I have to write myself my appName (and envName).

Expected behavior

• CLI should request the appName (and envName), and write it in .zetarc, as for developer login/password

Minimal reproduction of the problem with instructions

What is the motivation / use case for changing the behavior?

Please tell us about your environment:

• Operating System:
• Node Version: X.Y.Z
• Npm Version: X.Y.Z
• @zetapush/* Version: X.Y.Z