Add Summary-Only option to Audit Mode

[timpokorny]

Description

The current audit mode prints details for every message that passes through the RTI. This can be enormous. When you're only looking for coarse information you often just want a summary. Extend the audit mode to include an option that only prints the summary table.

Acceptance Criteria

When complete, I shall be able to:

• Set an option in the RID file to only print an audit summary
• When set, this will print just the header and summary table, not the individual message lines for each sent/received message
• This will not be the default