Allow the user to specify verbose logging level when deploying a cluster

[yingsu00]

In Presto C++ code, Glog was used to do the logging. VLOG(N) was used in various places to log the stuff on different levels. The user uses "--v n" for presto_server to know the wanted log level. Any VLOG(N) that N <= n would be invoked.

Currently, the deploy cluster pipeline shows only a tick box for whether to enable verbose logging. However it only sets --v 1. There is no way to log higher level stuff.

The suggestion is to change the tickbox to a dropdown list from 0 to 11, and default to 0. Add the explanation when the user clicks the question mark.