Lower verbosity for Phasor Dynamics testing

[lukelowry]

Description

Addresses #527 and #528.

Proposed changes

Set verbosity to NONE before the expected failure tests

Further comments

@nkoukpaizan This does not fully address the open issues but it helps with the usability concern, I think. Let me know what you think

[nkoukpaizan]

A few comments:

• Setting the verbosity to NONE in main for the tests may be too broad. Perhaps add some comments in the code to the effect this being a temporary solution and how one might change this setting to get more verbose outputs.
• Note that we are still printing messages, e.g., Testing expected ESDC1A missing-bus configuration error., even though the errors have been suppressed.
• This addresses the two linked issues, but the excessive output concern applies to several other tests, e.g., PhasorDynamicsExciterEsdc1aTest.

[lukelowry]

@nkoukpaizan I see, how about my change in ca00d14? Changes back to previous verbosity

[nkoukpaizan]

Suggested change

	// Use EVERYTHING to inspect diagnostics from the invalid cases below.
	// Changing the verbosity to NONE to suppress expected errors and warning for the following tests.
	// Use EVERYTHING to inspect diagnostics from the invalid cases below.

I like having a comment here. I recommend adding something to this effect to other instances.