Concise apex test result output

[k-capehart]

There is a --concise flag in the CLI when running apex tests. This is really helpful when running large tests classes, as finding errors requires scrolling through the terminal output, which is especially cumbersome when also retrieving code coverage information.

There should be a setting to configure the concise output in VS code.

[k-capehart]

I put together a quick PR here: #6599

[k-capehart]

@CristiCanizales @mshanemc Is this something you guys would be open to merging in? It's a minor inconvenience but a prevelant one.

[k-capehart]

Completed! #6636