Makes verbose the default for commandline builds.
Makes verbose the default for commandline builds.

Various error messages refer to the message log and expect that the
output of Bazel has been printed via info messages. In commandline
builds these messages were hidden unless the user runs with the -v
flag. This change makes "verbose" the default behavior and adds a
-q flag to suppress info output.

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MOS_MIGRATED_REVID=121014155

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