[CLI] Print log message in `aptos move` subcommands when downloading deps

[banool]

If I compile / publish for the first time, or I just changed one of my dependencies (e.g. the framework), it should print a log message to stderr indicating that it's downloading the new deps. Currently it just mysteriously sits there for much longer than it normally does, which to a new user would be confusing. Sometimes it takes so long that someone might just give up even.