(CMS6) Update methods which output to both CLI and HTTP responses

[GuySartorelli]

As part of the work to upgrade sake an API has been created that provides a clear way to format output for HTTP vs for CLI.

That upgrade didn't apply it everywhere that currently outputs to the two places. We should update as much code as we can that outputs to both places so that we're doing things consistently.

The places I'm aware of are:

• DB::alterationMessage() which calls DBSchemaManager::alterationMessage()
• TableBuilder::buildTables()
• Debug

In order to achieve this, we may need a PolyOutput as a singleton, which is set to ANSI output for CLI interaction (sake and when phpunit is bootstrapped), and HTML output for all other scenarios.

Acceptance criteria

• All code in supported modules that outputs differently based on whether the context is HTTP or CLI uses the new PolyOutput